2024-03-28T14:29:59Z
https://shipjournal.co/index.php/sst/oai
oai:oai.shipjournal.co:article/2
2024-01-16T16:35:10Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/2
2024-01-16T16:35:10Z
Cotecmar
Vol. 1 No. 1; 7-15
Diseño de una hélice supercavitante
Osorio, Fabián A.; Departamento de Ingeniería Mecánica de la Universidad del Norte, Barranquilla
Bula, Antonio J.; Departamento de Ingeniería Mecánica de la Universidad del Norte, Barranquilla
Durango, Néstor N.; Departamento de Ingeniería Mecánica de la Universidad del Norte, Barranquilla
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/2
cavitation
computational shaping
cavitator
en_US
For the design of the propeller of super-cavitations, we proceeded according to the proposal developed by Kudo et al. (2001), which was to stimulate the cavitations by making a groove on the side of the blade with the lowest pressure. To establish the location of the groove or cavitator and achieve the predetermined objective, computational simulations were carried out of the pressure distribution in the hydro-dynamic profiles along the blade. Once the zone was identified, two propellers were built, a conventional one and another with grooves for its later testing which would allow us to know the difference in behavior between them. The tests proved that the propeller with grooves presented an increase in efficiency, and therefore, in the thrust speed, with a noticeable shifting of the maximum efficiency towards higher angular velocities than those of the design.
oai:oai.shipjournal.co:article/3
2024-01-16T16:35:10Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/3
2024-01-16T16:35:10Z
Cotecmar
Vol. 1 No. 1; 17-26
Valoración de la efectividad antiincrustante de recubrimientos aplicados a embarcaciones que operan en la Bahía de Cartagena
Meza, Martha J.
Calixto, Diana M.; Corporación para la Investigación de la Corrosión - CIC. Piedecuesta (Santander)
Velosa, Lina M.; Corporación para la Investigación de la Corrosión - CIC. Piedecuesta (Santander)
Acosta, Edwin M.; Corporación para la Investigación de la Corrosión - CIC. Piedecuesta (Santander)
Puyana, Mónica; Corporación para la Investigación de la Corrosión - CIC. Piedecuesta (Santander)
Universidad Jorge Tadeo Lozano. Facultad de Ciencias Naturales
Morales, José Alfredo; Cotecmar
Panqueva, Jorge H.; Corporación para la Investigación de la Corrosión - CIC. Piedecuesta (Santander)
2011-12-14
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/3
bioincrustation
antifouling coating
biocide
general performance of coating
biofouling
en_US
A method to evaluate the performance was developed in this study, according to the antifouling and anticorrosive efficiency, of 6 commercial antifouling systems in the plants of Mamonal and Bocagrande in the Bay of Cartagena. The general performance of the coatings was determined through the qualification of the resistance to the biofouling and the integrity of the antifouling and of the anticorrosive film. Additionally, a follow-up of the microbiologic and photochemical parameters were carried out of the marine media in the area of exposition, according to which both zones of study presented favorable conditions for the development of organisms with high percentages of fouling coating on control coupons. In the Plant of Mamonal, the systems showed a better antifouling efficiency regarding the Plant of Bocagrande. According to the type of coating, the auto-po lishing presented a better performance compared to the soluble and insoluble type matrix coating.
oai:oai.shipjournal.co:article/4
2024-01-16T16:35:10Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/4
2024-01-16T16:35:10Z
Cotecmar
Vol. 1 No. 1; 27-42
Diagnóstico energético del sistema de aire acondicionado y refrigeración de un buque tipo nodriza fluvial
Rodríguez, Carlos M.
Lugo Villalba, Ricardo; Cotecmar
Fajardo, Juan G.; Facultad de Ingeniería de la Universidad Tecnológica de Bolívar
Sarría, Bienvenido; Facultad de Ingeniería de la Universidad Tecnológica de Bolívar
2011-12-14
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/4
energetic diagnosis
coil curves
energy savings
thermal charges
sensible heat factor
en_US
For the design of the propeller of super-cavitations, we proceeded according to the proposal developed by Kudo et al. (2001), which was to stimulate the cavitations by making a groove on the side of the blade with the lowest pressure. To establish the location of the groove or cavitator and achieve the predetermined objective, computational simulations were carried out of the pressure distribution in the hydro-dynamic profiles along the blade. Once the zone was identified, two propellers were built, a conventional one and another with grooves for its later testing which would allow us to know the difference in behavior between them. The tests proved that the propeller with grooves presented an increase in efficiency, and therefore, in the thrust speed, with a noticeable shifting of the maximum efficiency towards higher angular velocities than those of the design.
oai:oai.shipjournal.co:article/5
2024-01-16T16:35:10Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/5
2024-01-16T16:35:10Z
Cotecmar
Vol. 1 No. 1; 43-50
Valoración de la protección contra sobretensiones en embarcaciones que navegan por los ríos colombianos: estudio de caso
Ramírez, Olga C.; Universidad Nacional de Colombia, Facultad de Ingeniería Departamento de Ingeniería Eléctrica
Jiménez, Claudia L.; Universidad Nacional de Colombia, Facultad de Ingeniería Departamento de Ingeniería Eléctrica
Amórtegui, Francisco J.; Universidad Nacional de Colombia, Facultad de Ingeniería Departamento de Ingeniería Eléctrica
Jiménez, Víctor H.; Cotecmar
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/5
Electric Systems on Ships
Surges
Electric Protection
Electromagnetic Compatibility
en_US
This article presents part of the thesis realized taking the IV Riverine Mothership and its electrical system as a case study. During its development, the ship’s electric-electronic system and sensitive equipment’s main characteristics were verified, the risks that can cause surges and electric maneuverings of the power equipment were analyzed, some scenarios were modeled, because they were considered to be the most critical, and some possible alternate solutions were presented.
oai:oai.shipjournal.co:article/6
2024-01-16T16:35:10Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/6
2024-01-16T16:35:10Z
Cotecmar
Vol. 1 No. 1; 51-61
Camuflaje en las Fuerzas Fluviales Origen del verde Armadas
Zárate, Fredy; Cotecmar
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/6
survival
stealth
camouflage
mimicry
RAL
ECF
PAF
color
tone
es_ES
The survival of the ships that carry out river operations is subject to multiple threats, operational stealth is an effective and relatively economic way to increase this parameter, to get a closer look at the mechanisms that allow us to maximize its benefits will allow us to implement actions which increase the survival capacity of the naval means available for the execution of the operations on the river. This article explains how the color known as “Navy Green” employed for the Colombian Navy’s Infantry Ships and Boats was defined, raising simultaneously questions and some suggestions for the development of investigations that conduct to the normalization and identification of aspects that allow us to reinforce this quality and its general contribution to the survival of the riverine forces.
oai:oai.shipjournal.co:article/8
2024-01-17T18:41:24Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/8
2024-01-17T18:41:24Z
Cotecmar
Vol. 1 No. 2; 7-16
Modelado numérico de la propagación de fractura por fatiga utilizando el método de los elementos de contorno
Useche Vivero, Jairo F.
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/8
Fracture growth propagation
boundary element method
fracture mechanics
es_ES
The work presents a computer tool based on the boundary element method (BEM), that allows the study of the propagation of fracture phenomenon in structures which have sustained cyclical efforts. The code functions to develop computer models focused on the study of residual resistance of fractured bi-dimensional components based on linear elastic fracture mechanics (LEFM). The boundary element formulation of the problem is presented, as well as its computer implementation and its application to the specific problem analysis of fracture growth by fatigue. Fracture growth is modeled through the theory proposed by Paris, applied to the case of flat elasticity, and the criteria of maximum main efforts is used to define the direction of propagation (Portela, 1992). The BEM formulation was implemented in a computer code developed in Matlab 7.0 . The program has demonstrated effectiveness in predicting trajectories of propagation and residual resistance by fatigue, allowing its use as a tool of analysis in engineering.
oai:oai.shipjournal.co:article/9
2024-01-17T18:41:24Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/9
2024-01-17T18:41:24Z
Cotecmar
Vol. 1 No. 2; 17-26
Caracterización mecánica y microestructural de acero naval sometido a cargas dinámicas por explosión
Alarcón Ahumada, José A.
Fajardo Cuadro, Juan
Useche Vivero, Jairo
Cano Restrepo, Carlos
Ramírez Wilches, Diana
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/9
grade A ASTM A 131 steel
explosions
plastic deformation
destructive testing
non destructive testing
naval panels
es_ES
The work presents the mechanical and micro-structural characterization of the grade A ASTM A 131 steel laminate that form naval panels (reinforced laminate with defined ratios aspect l/b), attained by means of destructive testing, to establish the mechanical response of naval structures submitted to those types of charges. Measurements of micro-hardness, grain size and tension tests of specimens of the material were carried out before and after the impact. The material hit was selected from structural panels submitted to controlled explosions generated nearby with 25g charges of pentolite, placed at predetermined distances. For the characterization, panels with the presence of fissures were rejected. Important variations in micro-hardness and mechanical characteristics appeared; nevertheless, significant micro-structural changes were not observed in grain size.
oai:oai.shipjournal.co:article/10
2024-01-17T18:41:24Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/10
2024-01-17T18:41:24Z
Cotecmar
Vol. 1 No. 2; 27-42
A Diagnostic of Diesel-Electric Propulsion for Ships
Narciso Pereira, Newton
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/10
diesel-electric propulsion system
azipod ropulsion
maneuvering
steering
es_ES
The main objective of this paper is to present an analysis on diesel electric −DE− propulsion systems used on naval, maritime and fluvial ships. There are many advantages and some disadvantages of this system; besides, new propulsion systems have been developed to aid in the maneuvering and steering of ships. Recently, electric ships have employed a very interesting architectural arrangement and these technologies permit achieving more efficiency and a reduction of operational cost and weight. Considerations for propulsion systems utilizing the various types of machine technologies such as the Azipod system are also discussed.
oai:oai.shipjournal.co:article/11
2024-01-17T18:41:24Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/11
2024-01-17T18:41:24Z
Cotecmar
Vol. 1 No. 2; 43-54
Diagnóstico energético del sistema de circulación de agua fría en buques tipo nodriza fluvial
León Pérez, Karol B.
Cruz Rodríguez, Juan C.
Sarría López, Bienvenido
Fajardo Cuadro, Juan
Lugo Villalba, Ricardo
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/11
power consumption
centrifugal pump
pipes
air conditioner
losses
ships
es_ES
The air conditioning system of a riverine patrol and supply type ship constructed by Cotecmar is constituted by a cold water circulation circuit through which centrifugal pump supplies 21 fan coils, by means of which the parameters of human comfort are guaranteed. In this article, the Power Diagnosis of the system is presented with the aim of establishing the possible opportunities for saving on the ships, calculating the losses in the system and determining the equation and the equivalent curve with which the “pump-system” set’s point of operation was found. The result of the diagnosis shows that most of the losses that take place are due to pipes, accessories and fan coils, reason why a group of measures oriented towards the reduction of power consumption are proposed and that are reflected in a better operation and in the advantage taken of the resources with which one counts upon.
oai:oai.shipjournal.co:article/12
2024-01-16T21:29:40Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/12
2024-01-16T21:29:40Z
Cotecmar
Vol. 2 No. 3; 5-24
Estudio comparativo del método de cálculo de carga térmica para sistemas de aire acondicionado en buques
Rodríguez Jaraba, Carlos
Sarría López, Bienvenido
Fajardo Cuadro, Juan
Lugo Villalba, Ricardo
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/12
thermal charge calculation method
CLTD/CLF
thermal charge
zone method
global coefficients
es_ES
This article presents a comparative study between the practices recommended by the Society of Naval Architects and Marine Engineers –SNAME– for the design of air conditioning systems on ships and the methodology of thermal charge calculation CLTD/CLF developed by the American Society of Heating, Refrigeration and Air Conditioning Engineers –ASHRAE–. To verify the difference in the results obtainedwhen applying the proposed considerations and equations of calculus, ship design data of the VI riverine patrol and supply ship built by Cotecmar, it demonstrated that by means of the use of the methodology of the SNAME, over-sized air conditioning systems are obtained. And the global coefficients of heat transference were also evaluated comparing the results tabulated by the SNAME with the values obtained through zone method. Finally, the influence of the calculated thermal charges in the capacity of the equipment of cooling required on the premises of the ship was determined.
oai:oai.shipjournal.co:article/13
2024-01-16T21:29:40Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/13
2024-01-16T21:29:40Z
Cotecmar
Vol. 2 No. 3; 25-38
Soldabilidad de un acero microaleado utilizando el proceso Smaw y metal de aporte ferrítico de alta resistencia
Castilla, Iván J.
Unfried S., Jimmy
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/13
weldability
armor steel
controlled thermal severity test
H plate test
ferritic filler metal
es_ES
In this research was studied the weldability of Q&T armor steel MIL A46100 (Fe; 0.28%C; 0.30%Cr; 0.24%Mo y 0.2%Ni), with AWS E11018M filler metal and SMAW manual process, through relations generated between of microstructure, process variables, mechanical properties (tension, toughness impact Charpy V and microhardness); in addition was evaluated the susceptibility of the HIC through CTS (Controlled Thermal Severity) test and H plates on the weldments and the performance of service (ballistic performance), in different input heats, named: high and low. Has been established the incidence of the input heat on the properties and the service performance.
oai:oai.shipjournal.co:article/14
2024-01-16T21:29:40Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/14
2024-01-16T21:29:40Z
Cotecmar
Vol. 2 No. 3; 39-46
Avances en la estimación de la resistencia de catamaranes
Salas, Marcos
Sahoo, Prasanta K.
Luco, Richard
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/14
catamaran
resistance
CFD
es_ES
The catamaran type hulls have been used since remote times; however, they have almost always been restricted to minor ships. A massive growth of these kinds of vessels has been noted recently in the ferry industry, for sporting vessels and pleasure. The use of compound materials and of aluminum, added to greater power, has allowed that the ranges of operations are developed at high speeds. One of the challenges which naval architects who project these vessels must face, is to estimate with enough precision, the hull resistance to drag, a task which is not trivial at all because until today, a certain degree of uncertainty remains, particularly due to the interaction that is possible to notice between them.In the present study, the progresses in the methods of evaluation of the drag in multi-hull ships, particularly that of a catamarans, obtained by computational fluids dynamics –CFD-, and through tests in a hydrodynamic testing canal carried out by the Universidad Austral of Chile. Besides, a method based on equations of regressions is presented for the calculation of the drag coefficient of waves for catamarans with round hulls in a regime of semidisplacement speed.
oai:oai.shipjournal.co:article/15
2024-01-16T21:29:40Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/15
2024-01-16T21:29:40Z
Cotecmar
Vol. 2 No. 3; 47-58
Análisis de requerimientos mediante la aplicación de AHP como base para el desarrollo del diseño conceptual de un buque tipo LCU
Araníbar, Luis E.
Callamanda, Rafael L.
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/15
landing Craft Utility (LCU)
landing
preliminary design
AHP
es_ES
This article summarizes the study of the requirements and necessities which are taken into consideration in the development of the conceptual design of a Landing Craft Utility (LCU), in which the AHP hierarchic analysis methodology was used, in order to qualify and classify the requested by the Colombian Navy (ARC), which will be the user of the ship. This way, it was possible to establish the importance which each of the necessities exposed has for the shipbuilder, in order to include them directly in the design process.
oai:oai.shipjournal.co:article/16
2024-01-16T21:29:54Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/16
2024-01-16T21:29:54Z
Cotecmar
Vol. 2 No. 4; 5-14
Efectos de la distancia interanódica y la geometría del cátodo, en la efectividad de los sistemas de protección catódica por ánodos de sacrificio en embarcaciones
Ruedas Pacheco, Darío H.
Villalba, Reinaldo
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/16
cathodic protection
anodic distribution
olarization
cathode
anode
es_ES
The present article relates determined results derived from the lab study, whose principal objective lies on determining the incidence of the distance between the anodes and the cathode geometry in the life cycle of cathodic protection systems. These investigations are headed towards generating the basic knowledge of the performance of the galvanic cathodic protection systems for ships, with the objective of supporting a software that takes into consideration the influence of all the variables and the current considerations of design.The results prove that the life cycle of the cathodic protection system by sacrifice anodes largely depends on the inter anodic distance adopted in the routine of design and that there is an optimum distance which objectively orients the decision making at the moment of anode assembly on the hull of the ship. Likewise, the geometry of the substrate affects on the life cycle of the system and is interpretable as an amplifying factor of the exposed area which will be protected.
oai:oai.shipjournal.co:article/17
2024-01-16T21:29:54Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/17
2024-01-16T21:29:54Z
Cotecmar
Vol. 2 No. 4; 15-22
Desarrollo de modelos basados en simulación y optimización heurística como soporte para la toma de decisiones en operaciones de transporte de carga fluvial
Ríos Griego, John Henry
Sarabia Viaña, María Carolina
Herrera Hernández, María Carolina
Paternina Arboleda, Carlos Daniel
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/17
model
simulation
optimization
heuristic
decision-making
transport
es_ES
This article presents the design and implementation of models based on heuristic simulation and optimization to support the decision-making process in operations of riverine load transport. Its development implies formulating and solving optimization models through the simulation of operations of load flow throughout the Magdalena river (Colombia). The decisions are also taken in relation with the management of distribution centers located along the river and with the demand of services that a transport company can attend in the destination points. An analysis of sensibility is carried out on the parameters of capacity, transport planning, expansion and location, all of this in a tactical and operative scale.
oai:oai.shipjournal.co:article/18
2024-01-16T21:29:54Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/18
2024-01-16T21:29:54Z
Cotecmar
Vol. 2 No. 4; 23-36
Estabilidad dinámica de buques en olas
Santos Neves, Marcelo
Cipriano, William M.
Rodríguez, Claudio A.
Merino, Jorge A.
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/18
stability
movement on waves
dynamic modes
rough inclination
parametric resonance
es_ES
The present work is about ship stability with an emphasis on the relationship it has with the movement of the waves, in order to introduce a discussion about the dynamic modes which lead to anguish at severe sea: simple loss of stability, rough inclination and parametric resonance.We present a summary on the occurrence and relevance of the rough inclination in stern sea and the parametric resonance in prow sea, for shallow-draft vessels. In order to study the influence of different parameters, two shallow-draft vessels are investigated for some speeds and conditions of load, in which rough inclination was reported in stern sea and parametric resonance in sea front. Experimental results are compared with numeric simulations, in order to, finally, discuss the use of stabilizing tanks in the control of parametric resonance.
oai:oai.shipjournal.co:article/19
2024-01-16T21:29:54Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/19
2024-01-16T21:29:54Z
Cotecmar
Vol. 2 No. 4; 37-48
Sustitución de la arena en procesos de chorreado en seco para la limpieza de superficies metálicas
Juzga León, Giovanni A.
Villalba Rodríguez, Reinaldo
Rueda Sarmiento, Ronald
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/19
abrasive
dreg
fine emissions
surface preparation
es_ES
The present article centers its objective on valuing the technical, economic and environmental feasibility of abrasive materials which substitute sand, conventionally used in the processes of surface preparation of the ships that undergo maintenance in the shipyards of the Corporation of Science and technology for the Development of the Naval, Maritime and Riverine Industry –Cotecmar– in Cartagena de Indias, given the negative impact that its use generates in the environment and in the health of the personnel involved in the process. Applying the hierarchic method AHP, the methodology of material selection of the Corporation for the Investigation of Corrosion –CIC– and the cost method developed, a group of abrasive was selected to test its technical-economic competitiveness in the lab as well as in Cotecmar’s shipyards. The final result was a dry-blasting process with copper dreg, and a contingent process that uses dreg of ferronickel. The first material is commercialized as an abrasive, the second isn’t, and both are technically and economically competitive with only a marginal impact on the environment and on the health of the personnel.
oai:oai.shipjournal.co:article/21
2024-01-16T21:30:18Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/21
2024-01-16T21:30:18Z
Cotecmar
Vol. 3 No. 6; 9-18
Design of High-Performance Ships using Simulations
Grannemann Aufforth, Fritz
Bertram, Volker
2010-01-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/21
CFD
ship design
simulation
structural analysis
es_ES
Simulation-based design increasingly replaces traditional experience-based design. This article gives an overview of techniques now used in advanced industry practice, with particular focus on navy applications. The article covers the basics of the techniques, illustrating approaches and state of the art with applications taken from the experience of Germanischer Lloyd.
oai:oai.shipjournal.co:article/22
2024-01-16T21:30:18Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/22
2024-01-16T21:30:18Z
Cotecmar
Vol. 3 No. 6; 19-40
Analysis of the current stage of the Brazilian Maritime Industry and study of clusters features in this industry - Naval construction, repair, offshore and nautical
Botter, Rui Carlos
Moura, Delmo Alves de
2010-01-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/22
brazilian maritime industry
european maritime clusters
competitiveness
es_ES
The present work aims to analyze the Brazilian maritime industry. The core of the work is making an analysis of which are the basic elements to insert this system in the national maritime industry and how it is structured nowadays. The focus of the work is to analyze the four larger segments of this industry in Brazil: shipbuilding, construction of off-shore platforms and ship repair. The research included fieldwork in each national shipyard and other actors in the supply chain of that industry, as well as unions and associations.
oai:oai.shipjournal.co:article/23
2024-01-16T21:30:18Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/23
2024-01-16T21:30:18Z
Cotecmar
Vol. 3 No. 6; 41-52
Validating the weldability with flux core arc welding “FCAW” for deteriorated naval steels (FLUX CORED ARC WELDING)
Patarroyo, Alfonso
Solano, Elvis
Cueca, Fabio
Rojas, Fernando
Morales, Alfredo
2010-01-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/23
weldability
corrosion
flux Cored arc welding
es_ES
Repairs and changes of steel plates in the structure of the vessels where it is possible to find steels with a high degree of deterioration need reliable welded joints in naval steel of the type ASTM A–131 Gr. A new to old. Due to the fact that the variables associated to the weldability of the materials to be repaired are not known, it is necessary to make a study on the weldability of steel ASTM A131 Gr A, in full penetration seams or junctures, under the various parameters involved in the welding process, to determine the influence of the corroding residues that affect the application of welding compounds through the analysis of the metallurgical reactions of liquid condition in order to select the contributing materials with the alloy elements that are able to prevent these phenomena and to recommend the best practices for the electric arc welding process with tubular electrode with FCAW flux core.
oai:oai.shipjournal.co:article/24
2024-01-16T21:30:18Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/24
2024-01-16T21:30:18Z
Cotecmar
Vol. 3 No. 6; 53-66
Determination of Productivity Parameters in ship maintenance works in a medium-size shipyard
Barberán Nazareno, José L.
Marín López, José R.
2010-01-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/24
ship maintenance
es_ES
Productivity parameters were determined in maintenance works of 16 ships in the slipways of ASTINAVE, a medium-size shipyard at Guayaquil, Ecuador, in the period between April 2008 and January 2009. Typical processes applied during ship maintenance, its units for evaluation and a classification chart are presented. With the registered time (Man-Hour, M-H), mean values, standard deviations and variation coefficients were calculated for each process. Mean value results for each work were: Plating replacement: 0.220 M-H/kg, Hull cleaning: 0.435 M-H/m2-machine, Painting: 0.027 M-H/m2-machine, Cathodic protection: 0.116 M-H/Kg, Thickness measurement: 0.030 M-H/test, Propulsion system: 130.92 M-H/line, Steering system: 54.89 M-H/line, Ship docking/undocking: 43.97 M-H/maneuver, Bottom Valves: 15.83 M-H/#valve, and, Fuel tank cleaning: 0.0093 M-H/gal.
oai:oai.shipjournal.co:article/25
2024-01-16T21:30:18Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/25
2024-01-16T21:30:18Z
Cotecmar
Vol. 3 No. 6; 67-74
Fuzzy Predictive Model of the Vertical Acceleration of a High Speed Vessel in Pitch Motion
Gil Navia, Francisco
Contreras Montes, Juan
2010-01-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/25
fuzzy identification
vessel pitching
fuzzy predictive model
recursive least squares
es_ES
An adaptable fuzzy inference technique is being described in order to generate predictive models of the acceleration of the pitching of a high speed vessel, from the data obtained from the web on an experiment conducted by the University of Iowa. The geometry of interest in the experiment is a scale model of the type 1/46.6 of the DTMB model 5415 (DDG-51). The fuzzy algorithm for the generation of the predictive model uses a triangular partition with a 0.5 overlapping and consequents of the Singleton type. The consequents are adjusted in an automatic fashion by using recursive least squares. The algorithm shows a very low computational complexity rate which allows for it to be used for on line identification.
oai:oai.shipjournal.co:article/26
2024-01-16T21:30:18Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/26
2024-01-16T21:30:18Z
Cotecmar
Vol. 3 No. 6; 75-88
Multi objective support system for the decisions to plan scheduling of operations
Saavedra Antolínez, Iván
Paternina Arboleda, Carlos D.
Niño Ruiz, Elías D.
Gómez Vizcaíno, Libardo S.
2010-01-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/26
DSS decision support system
multi-objective optimization
operation scheduling
operational planning
and evolutionary algorithms
es_ES
This research shows the design and construction of a multi objective optimization support system for decision making, DSS-SCHEDULER, in order to effectively perform naval shipbuilding operations, by managing to have a rational usage, under a limited capacity, of the installed capacity. The system creates the operational plan for the scheduling of operations as well as the allocation of all the resources related to the processes carried out at the plant, and, taking into account all the restrictions this type of service entails, generate a set of optimal solutions in order to comply with the objective functions as planned, such as costs and the promise for delivery dates to support the decision making process in scheduling Cotecmar’s industrial operations.
oai:oai.shipjournal.co:article/28
2024-01-16T21:30:08Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/28
2024-01-16T21:30:08Z
Cotecmar
Vol. 3 No. 5; 9-32
Applications of Optimization in Early Stage Ship Design
Parsons, Michael G.
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/28
ship design
multicriterion optimization
genetic algorithms
evolutionary algorithms
agent methods
fuzzy optimization
es_ES
Recent research at the University of Michigan developing and applying modern optimization methods to early ship design decision making is reviewed. These examples illustrate the use of fuzzy logic, genetic and evolutionary algorithms, and agent methods to solve complex multicriterion ship design problems. The first application optimizes an early stage hull form for both smooth water powering and seakeeping performance using an advanced evolutionary algorithm taking into consideration the change of vessel weight with the hull form variation. The second application supports the optimization of naval ship general arrangements using a new hybrid agent-genetic algorithm method and stochastic generation algorithm. The final example uses an evolutionary algorithm to establish the optimal commonality to use in two ship classes that are to share components and features in order to save overall fleet costs. These show how these advanced ship design methods can be used to aid early ship design decisions.
oai:oai.shipjournal.co:article/29
2024-01-16T21:30:08Z
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https://shipjournal.co/index.php/sst/article/view/29
2024-01-16T21:30:08Z
Cotecmar
Vol. 3 No. 5; 33-58
Mission Configurable Modular Craft Concept Study
Savander, Brant R.
Troesch, Armin
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/29
planing
high-speed craft
multi-hulls
seakeeping
es_ES
This work illustrates how modern high speed craft design tools may be effectively used to evaluate innovative concepts for which empirical data may be limited. The example presented here was motivated by the US Navy’s interest in a finding a replacement for, or complement to, the USN Special Operations Forces’ Mark V high speed craft. Given the conflicting demands of restricted size and weight imposed by air transportability and broad mission requirements, a modular, multi-hull configuration is proposed and studied. The boat parameter space that influences calm water performance, sea keeping accelerations, and structural loads is explored. A proposed trimaran concept shows how intelligent placement of outer, or wing hulls can, in principle, mitigate shock loads and lower resistance, but with the cost of increased structural complexity and potentially a heavier craft.
oai:oai.shipjournal.co:article/30
2024-01-16T21:30:08Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/30
2024-01-16T21:30:08Z
Cotecmar
Vol. 3 No. 5; 59-72
Designing for Damage Stability and Survivability – Contemporary Developments and Implementation
Vassalos, Dracos
Guarín, Luis
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/30
probabilistic rules
damage stability and survivability
risk-based ship design
es_ES
With the new harmonised regulations for damage stability, SOLAS 2009, now in place (since January 2009), a number of ship owners and consequentially yards and classification societies are venturing to exploit the new degrees of freedom afforded by the probabilistic concept of ship subdivision. In this process, designers are finding it rather difficult to move away from the prescriptive mindset that has been deeply ingrained in their way of conceptualising, creating and completing a ship design. Total freedom it appears is hard to cope with and a helping hand is needed to guide them in crossing the line from prescriptive to goal-setting design. This will be facilitated considerably with improved understanding of what this concept entails and of its limitations and range of applicability. This paper represents an attempt in this direction, based on the collective knowledge and experience of the authors, deriving from many years of research on damage stability and survivability and a string of new concept designs for the passenger ship industry.
oai:oai.shipjournal.co:article/31
2024-01-16T21:30:08Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/31
2024-01-16T21:30:08Z
Cotecmar
Vol. 3 No. 5; 73-82
Stability and dynamical effects of water on deck on the survivability of small fishing vessels
Francescutto, Alberto
Bulian, Gabriele
Urcia Larios, Manuel
Arroyo Ulloa, Maximiliano
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/31
fishing vessels
Stability
Water on deck
Sloshing
Capsizing
Roll motion
es_ES
Starting from the analysis of casualties at sea involving small fishing vessels (Lbp<24 m), the paper presents the results of an experimental study on the capsizing resistance in beam or following steep or high waves of scale models in the towing tank of University of Trieste. The physical mechanisms leading to capsizing are highlighted and the experimental result are compared with existing theoretical approaches. The results stress the importance of deck wetness and of the presence of fishing nets as wave trappers on the probability of capsizing. The importance of complying with the existing regulations for dimensioning the freeing ports, although only voluntary, appears also an element of paramount importance.
oai:oai.shipjournal.co:article/32
2024-01-16T21:30:08Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/32
2024-01-16T21:30:08Z
Cotecmar
Vol. 3 No. 5; 83-92
Integrating topology and shape optimization: a way to reduce weight in structural ship design
Méndez Algarra, Germán A.
Tovar Pérez, Andrés
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/32
computational structural design
topology optimization
shape optimization
es_ES
The Hybrid Cellular Automaton (HCA) algorithm is a methodology developed to simulate the process of functional adaptation in bones. The HCA algorithm combines elements of the cellular automaton (CA) paradigm with finite element analysis. This methodology has proved to be computationally efficient to solve topology optimization problems. In this paper, the HCA algorithm is integrated with a shape optimization algorithm that uses sequential quadratic programming. The geometry of the topologically optimized structure is converted into a two-dimensional solid model using an edge detection algorithm and parametric B-splines. An example problem of a Michell structure is presented. Also shown is the application of the shape optimization algorithm in the redesign of the lightening holes in the transverse floors of a riverine patrol vessel designed by COTECMAR. In both cases an appreciable weight reduction was obtained.
oai:oai.shipjournal.co:article/33
2024-01-16T21:30:08Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/33
2024-01-16T21:30:08Z
Cotecmar
Vol. 3 No. 5; 93-106
Disposal and Recycling of HSC Materials
Gramann, Henning
Krapp, Reinhard
Bertram, Volker
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/33
environment
recycling
composite
high-speed craft
es_ES
The introduction gives an overview of current IMO activities concerning the disposal of ships at the end of their life-cycle and an overview of composite materials applications in ships. After a brief discussion of relatively unproblematic aluminum alloys, the article focuses on problems for composite materials. There is little experience for end of life treatment of composites in general and in the shipbuilding industry in particular. New legislation might regulate handling and disposal of these materials even further. The article identifies existing solutions as well as open questions.
oai:oai.shipjournal.co:article/34
2024-01-16T21:30:08Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/34
2024-01-16T21:30:08Z
Cotecmar
Vol. 3 No. 5; 107-124
Accreditation of Hydrodynamic Channels in use in Naval Modeling
Freiria, Jorge
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/34
ship resistance
uncertainty evaluation
hydrodynamic tests
es_ES
This work considers a Quality System applied to a specific environment, the Hydrodynamic Towing Tanks or Channels, following the International Towing Tank Conference (ITTC) guidelines, gathered in turn from the international regulations, and it focuses the assessment of uncertainty in the experimental outcomes from the hydrodynamic tests called Test to resistance, as well as in determining which of the variables are those that have greater incidence on the mentioned outcomes.
oai:oai.shipjournal.co:article/37
2024-01-16T21:30:30Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/37
2024-01-16T21:30:30Z
Cotecmar
Vol. 4 No. 7; 21-30
SPH Boundary Deficiency Correction for Improved Boundary Conditions at Deformable Surfaces
Jones, Van
Yang, Qing
McCue-Weil, Leigh
2010-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/37
smoothed particle hydrodynamics SPH
SPH boundary condition
es_ES
Smoothed particle hydrodynamics (SPH) is a meshless, Lagrangian CFD method. SPH often utilizes static virtual particles to correct for integral deficiencies that occur near boundaries. These virtual particles, while useful in most cases, can be difficult to implement for objects which experience large deformations. As an alternative to virtual particles, a repulsive force algorithm is presented which loosely emulates the presence of virtual particles in the SPH momentum equation.
oai:oai.shipjournal.co:article/38
2024-01-16T21:30:30Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/38
2024-01-16T21:30:30Z
Cotecmar
Vol. 4 No. 7; 31-42
Creating Bathymetric Maps Using AUVs in the Magdalena River
Chyba, Monique
Rader, John
Andoinian, Michael
2010-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/38
river survey
autonomous underwater vehicle
es_ES
The goal is to develop a guidance and navigation algorithm for an AUV to perform high resolution scanning of the constantly changing river bed of the Magdalena River, the main river of Colombia, from the river mouth to a distance of 10 Km upriver, which is considered to be the riskiest section to navigate. Using geometric control we design the required thrust for an under-actuated autonomous underwater vehicle to realize the desired mission.
oai:oai.shipjournal.co:article/39
2024-01-16T21:30:30Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/39
2024-01-16T21:30:30Z
Cotecmar
Vol. 4 No. 7; 43-54
Metamodeling Techniques for Multidimensional Ship Design Problems
Backlund, Peter B.
Shahan, David
Seepersad, Carolyn C.
2010-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/39
metamodeling
kriging
radial basis functions
support vector regression
metamodel-based design optimization
es_ES
Metamodels, also known as surrogate models, can be used in place of computationally expensive simulation models to increase computational efficiency for the purposes of design optimization or design space exploration. Metamodel-based design optimization is especially advantageous for ship design problems that require either computationally expensive simulations or costly physical experiments. In this paper, three metamodeling methods are evaluated with respect to their capabilities for modeling highly nonlinear, multimodal functions with incrementally increasing numbers of independent variables. Methods analyzed include kriging, radial basis functions (RBF), and support vector regression (SVR). Each metamodeling technique is used to model a set of single-output functions with dimensionality ranging from one to ten independent variables and modality ranging from one to twenty local maxima. The number of points used to train the models is increased until a predetermined error threshold is met. Results show that each of the three methods has its own distinct advantages.
oai:oai.shipjournal.co:article/40
2024-01-16T21:30:30Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/40
2024-01-16T21:30:30Z
Cotecmar
Vol. 4 No. 7; 55-64
Application of Sampling Based Model Predictive Control to an Autonomous Underwater Vehicle
Caldwell, Charmane V.
Dunlap, Damion D.
Collins, Emmanuel G.
2010-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/40
motion planning
path planning
model predictive control
sampling
autonomous underwater vehicles
es_ES
Unmanned Underwater Vehicles (UUVs) can be utilized to perform difficult tasks in cluttered environments such as harbor and port protection. However, since UUVs have nonlinear and highly coupled dynamics, motion planning and control can be difficult when completing complex tasks. Introducing models into the motion planning process can produce paths the vehicle can feasibly traverse. As a result, Sampling-Based Model Predictive Control (SBMPC) is proposed to simultaneously generate control inputs and system trajectories for an autonomous underwater vehicle (AUV). The algorithm combines the benefits of sampling-based motion planning with model predictive control (MPC) while avoiding some of the major pitfalls facing both traditional sampling-based planning algorithms and traditional MPC. The method is based on sampling (i.e., discretizing) the input space at each sample period and implementing a goal-directed optimization (e.g., A*) in place of standard numerical optimization. This formulation of MPC readily applies to nonlinear systems and avoids the local minima which can cause a vehicle to become immobilized behind obstacles. The SBMPC algorithm is applied to an AUV in a 2D cluttered environment and an AUV in a common local minima problem. The algorithm is then used on a full kinematic model to demonstrate the benefits.
oai:oai.shipjournal.co:article/42
2024-01-17T13:13:29Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/42
2024-01-17T13:13:29Z
Cotecmar
Vol. 4 No. 8; 9-23
Passenger submarine concept design for oil production offshore systems
Lobão de Almeida, Thiago; Universidade de São Paulo. Brazil.
Coracini Tonacio, Victor; Universidade de São Paulo. Brazil.
2011-01-24
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/42
passenger submarine concept design
Manpower flow in offshore systems
CFD analysis
en_US
The paper proposes an innovative solution to transport workers of offshore oil production platforms from the coast to their units, which operate at the Pre-Salt exploration, 300 km from the coast. A passenger submarine concept design was developed, justified by the range of practical obstacles observed in the current modes of transportation, helicopters and supply boats. Requirements like operational depth (100 m), passenger capacity (250 people), and cruising speed (minimum 13.4 knots) are defined, based on estimates. Firstly, it seeks the adoption of air-independent propulsion (AIP) systems, by fuel cells (PEMFC). However, the work progress leads to an entire electric propulsion system. The internal arrangement is elaborated, regarding passenger comfort, structural constraints, allocation of batteries and ballast tanks. Then, after a hydrodynamic hull optimization, by Computational Fluid Dynamics analysis, we provide a final configuration with 100-m length and 9.7-m diameter, operational speed of 16 kt, and autonomy of 26 hours.
oai:oai.shipjournal.co:article/43
2024-01-17T13:13:29Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/43
2024-01-17T13:13:29Z
Cotecmar
Vol. 4 No. 8; 25-30
CFD modeling of 2D impact with symmetric entry
Algarín, Roberto; Department of Mechanical Engineering. Universidad del Norte. Barranquilla, Colombia.
Bula, Antonio; Department of Mechanical Engineering. Universidad del Norte, Barranquilla, Colombia.
Tascón, Oscar; Research, Development and Innovation Direction. Science and Technology Corporation for the Development of the Naval, Maritime and Riverine Industry in Colombia.
2011-01-24
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/43
2D Impact
CFD modeling
symmetric entry
flow separation.
en_US
The 2D impact phenomenon in calm water, considering symmetric entry with vertical velocity is studied. The analysis was performed by using commercial STAR-CCM+ computational fuid dynamics software. Thee results obtained from the simulations are pressure distribution and force during impact. The study was carried out for typical planning of boat sections. The results are compared with models and data obtained from some authors and they present very good agreement.
oai:oai.shipjournal.co:article/44
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Cotecmar
Vol. 4 No. 8; 31-39
Electric arc spray coatings for the naval industry
Dimate Castellanos, Laura Marcela; Universidad Nacional de Colombia. Departamento de Ingeniería Mecánica y Mecatrónica. Colombia.
Morales Torres, José Alfredo; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial - Cotecmar.
Olaya Florez, Jhon Jairo; Universidad Nacional de Colombia. Departamento de Ingeniería Mecánica y Mecatrónica. Colombia.
2011-01-24
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/44
electric arc spray
abrasive wear
thermal barrier
corrosion
en_US
Carbon and stainless steel, as well as Fe-Nb-Cr-W coatings were deposited on steel substrates by using electric arc spray, and its possibility of applying such coatings in the naval industry was analyzed. In order to achieve this, the coating microstructure was characterized before and after the corrosion, abrasive wear, and thermal barrier tests. Corrosion resistance was analyzed via potenciodynamic polarization test using a NaCl electrolyte at 3%; abrasive wear resistance was measured by using a three-component system following ASTM G-65 recommendations, while quality control as thermal barriers was studied by using EIS tests. Scanning Electron Microscopy, optical microscopy and X-ray diffraction were used to characterize the microstructure of the coatings.
oai:oai.shipjournal.co:article/45
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Cotecmar
Vol. 4 No. 8; 41-60
Aid in the design of antenna arrays with electronic phase steering using Matlab®
Gil Navia, Francisco José; Departamento de Armas y Electrónica de la Armada Nacional, Fuerza Naval de Caribe, Base Naval 1. Colombia.
2011-01-24
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/45
antenna arrays
electronic phase steering
MATLAB
en_US
Antenna arrays have been used since the 1950s in multiple applications; however, it was not until recent years that, given progress in digital technologies, this application has become the fastest and most varied development in the radar world. The main motivation for their development is that they permit electronic phase steering that implies extreme phase agility, while also being tolerant to failure because of the amount of elements that comprise them. They also permit the reduction of side lobes by controlling the amplitude of each element.Because it is a currently applied technology, but with many aspects under development, it is necessary to enter this field and generate the required tools including those for computer assisted prototyping. Because of the aforementioned, this work sought to use Matlab® to create virtual prototypes of arrays that permit visualizing an approach to their real behavior stemming from certain parameters.
oai:oai.shipjournal.co:article/46
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Cotecmar
Vol. 4 No. 8; 61-73
Design methodology of a militar messaging system
Pérez V., Gustavo; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial - Cotecmar.
Marrugo Ll., Stefany; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial - Cotecmar.
2011-01-24
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/46
Military messaging system
strategic messaging system
messaging system design
design methodology
communications network
en_US
The paper describes the design methodology of a military messaging system. The system’s design is characterized by its coherence among security, transmission medium, and design protocol, which allow added value in the strategic operations center. The system allows using a selected data base for subsequent applications of operations research tools and simulation. The system was designed with a low bandwidth communications network (HF / VHF / UHF and satellite phone calls) as the transmission media. The messaging system security is based on a public key cryptographic system. The paper also shows some of the test results of the system’s functionality.
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Cotecmar
Vol. 5 No. 9; 9-26
Holistic ship design optimization: merchant and naval ships
Papanikolaou, Apostolos D.; National Technical University of Athens, Ship Design Laboratory. Athens-Zografou, Greece.
2011-07-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/48
holistic ship design
parametric design
multi-criteria optimization
naval ships
en_US
The present paper provides a brief introduction to a holistic approach to ship design optimization, defines the generic ship design optimization problem, and demonstrates its solution by using advanced optimization techniques for the computer-aided generation, exploration, and selection of optimal designs. It discusses proposed methods on the basis of some typical ship design optimization problems of cargo and naval ships related to multiple objectives, leading to improved and partly innovative design features with respect to ships’ economy, cargo carrying capacity, safety, survivability, comfort, required powering, environmental protection, or combat strength, as applicable.
oai:oai.shipjournal.co:article/49
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Cotecmar
Vol. 5 No. 9; 27-39
On the numerical prediction of the ship’s manoeuvring behaviour
Cura-Hochbaum, Andrés; Technical University Berlin, Department Dynamics of Maritime Systems. Berlín. Germany.
2011-07-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/49
manoeuvring prediction
RANS
derivatives
virtual captive test
en_US
A numerical procedure to predict the manoeuvrability of a ship based on Reynolds Averaged Navier Stokes simulations is described together with some recommended practices to obtain feasible results. The paper is dedicated to surface ships in unrestricted waters where usually only four degrees of freedom (DoF) are relevant. An example for a tanker shows the capability of the proposed method.
oai:oai.shipjournal.co:article/50
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Cotecmar
Vol. 5 No. 9; 41-56
Using anthropometrics in designing for enhanced crew performance
Ross, J.M.; High Ground Initiatives LLC
2011-07-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/50
human factors
ergonomic
anthropometrics
ship design
performance
en_US
Today’s naval ship or craft designer routinely uses the principles of human factors (ergonomics) as a way to help enhance crew performance. But even though many aspects of human factors are well known, certain important categories often remain underutilized. One of these categories is anthropometrics, the study of human body dimensions and capabilities. Anthropometrics analyzes age, gender, and other data within populations of people, such as the general population of a nation or the special population of that nation’s active duty naval personnel. For the naval designer, anthropometrics helps to ensure adequate ergonomic design for the population from which the crew is drawn. The naval designer can address in a quantifiable manner issues such as lines of sight, console height and valve handle accessibility. When anthropometric principles are thus applied, the ship better fits the capabilities and limitations of the crew, resulting in enhanced crew performance.
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Cotecmar
Vol. 5 No. 9; 57-68
Recent developments in the design of fast ships
Gelling, J. L.
Keuning, J. A.; TU Delft, Delft University of Technology - Shiphydromechanics Department.
2011-07-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/51
high-speed craft
fast patrol vessels
hull form design
axe bow design
seakeeping behaviour
en_US
During the last twenty years, Damen Shipyards, a multinational shipbuilding group with 6000 employees worldwide, has done extensive research on the development of hull designs for fast monohull vessels. In the 1990s the Enlarged Ship Concept was developed, leading to highly improved sea keeping capabilities and vessel behaviour in waves at high speed. This hull design concept was applied in the Damen SPa 4207 patrol vessel and has proven extremely successful, reducing vertical accelerations by 50% and, thus, allowing vessels to keep operating at high speed in waves. Over 25 units of the Damen SPa 4207 have been delivered so far. After the successful introduction of the Enlarged Ship Concept, Damen and Delft University continued developing the next generation hull form: the axebow design. Compared to the already good sea keeping capacities of the Enlarged Ship Concept, model tests indicated a further reduction of vertical accelerations. This was proven by real-time measurements on the first built axebow vessels in 2006 and 2007. In the last 3 years, over 30 axe bow supply vessels have been delivered to very satisfied operators. As a next step, Damen has applied the axe bow design to the latest patrol vessel design, the Damen SPa 5009. The first vessel of this design is currently under construction and its trials are scheduled by the end of 2011. The paper describes the background of the research done by Damen and Delft University, focusing on the mathematical and scientific aspects of the axebow design and its application on various ship types. The development and design of the latest Damen patrol vessel, SPa 5009, will be introduced, describing its seakeeping performance, operatability and crew ergonomics. Finally, the paper will mention the current and future research topics that Damen and Delft University are working on together, identifying the developments of the future generation patrol vessels.
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Cotecmar
Vol. 5 No. 9; 69-86
Ship maneuverability: full-scale trials of colombian Navy Riverine Support Patrol Vessel
Carreño Moreno, Jorge E.; COTECMAR. Oldenburg, Lower Saxony. Germany.
Sierra Vanegas, Etty Y.; COTECMAR. Cartagena, Bolívar. Colombia.
Jiménez González, Victor H.; COTECMAR. Cartagena, Bolívar. Colombia.
2011-07-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/52
maneuverability
shallow waters
sea trials
ship dynamics
en_US
Methodology and results of full scale maneuvering trials for Riverine Support Patrol Vessel “RSPV”, built by COTECMAR for the Colombian Navy are presented. This ship is equipped with a “Pump – Jet” propulsion system and the hull corresponds to a wide-hull with a high Beam – Draft ratio (B/T=9.5). Tests were based on the results of simulation of turning diameters obtained from TRIBON M3˝ design software, applying techniques of Design of Experiments “DOE”, to rationalize the number of runs in different conditions of water depth, ship speed, and rudder angle. Results validate the excellent performance of this class of ship and show that turning diameter and other maneuvering characteristics improve with decreasing water depth.
oai:oai.shipjournal.co:article/53
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Cotecmar
Vol. 5 No. 9; 87-98
Application-optimised propulsion systems for energy-efficient operation
Kaul, Stefan; SCHOTTEL GmbH, Spay/Rhine, Germany.
Mertes, Paul; SCHOTTEL GmbH, Spay/Rhine, Germany.
Müller, Lutz; SCHOTTEL GmbH, Spay/Rhine, Germany.
2011-07-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/53
propulsion
efficiency
azimuth steering
cavitation
load distribution
en_US
Today, optimal propellers are designed by using advanced numerical methods. Major revolutionary improvements cannot be expected. More essential are the design conditions and the optimal adaptation of the propulsion system according to the operational requirements. The selection and optimisation of the propulsion system based on a systematic analysis of the ship’s requirements and the operation profile are the prerequisites for reliable and energy-efficient propulsion. Solutions are presented, which accommodate these issues with a focus on steerable rudderpropellers. Considerations include the efficiency potential of the propulsor itself, optimisation of the engine propeller interaction, and optimisation of a demandresponsive energy supply. The propeller-thruster interaction is complex, but offers some potential for optimisation. Results of examinations show this. The power distribution between multiple propellers at high loads of limited propeller diameters increases the efficiency. This can be done by double-propeller systems like the SCHOTTEL TwinPropeller or by distributing the power on several thrusters. This distributed propulsion offers economic operation and an increased lifetime by means of the demandresponsive use of energy. An efficiency-optimized electric motor instead of the upper gear box reduces the mechanical losses in the case of diesel-electric propulsion. An example: the SCHOTTEL CombiDrive.
oai:oai.shipjournal.co:article/54
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Cotecmar
Vol. 5 No. 9; 99-106
CFD modeling of 2D asymmetric entry impact along with horizontal velocity
Algarín, Roberto; Department of Mechanical Engineering. Universidad del Norte. Barranquilla, Colombia.
Bula, Antonio; Department of Mechanical Engineering. Universidad del Norte, Barranquilla, Colombia.
Tascón, Oscar; Research, Development and Innovation Direction. Science and Technology Corporation for the Development of the Naval, Maritime and
Riverine Industry in Colombia. Km 9, Via Mamonal. Cartagena D. T., Colombia.
2011-07-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/54
2D Impact
CFD modeling
asymmetric entry
keel flow separation
en_US
The 2D impact phenomenon in calm water, considering asymmetric entry and asymmetric entry withhorizontal velocity is studied. The analysis was performed by using a commercial CFD software (STARCCM+©). The results obtained from the simulations are: pressure distribution, force and roll moment.The study was carried out for typical planing boat sections. Furthermore, the critical conditions requiredfor flow separation from the keel are also determined. The results are compared with models and resultsobtained from some authors and they present very good agreement.
oai:oai.shipjournal.co:article/55
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Cotecmar
Vol. 5 No. 9; 107-114
Generating fuzzy autopilot for ship maneuvering
Contreras Montes, Juan A.; Escuela Naval Almirante Padilla - Facultad de Ingeniería Naval. Cartagena, Bolívar. Colombia.
Durán Martínez, Fernando J.; Escuela Naval Almirante Padilla - Facultad de Ingeniería Naval. Cartagena, Bolívar. Colombia.
Castro Celis, Alejandro
2011-07-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/55
ship maneuvering
heading control
fuzzy identification
intelligent control
en_US
This paper introduces a method to generate autopilots for ship headings by using issues from the observation of control actions performed by human operators. The controller is designed based on fuzzy logic and uses triangular membership functions for the antecedent and consequent functions for Singleton type. For an automatic adjustment of the consequential, the recursive least squares method was used. This method is used to generate and validate the course driver of a 350-m tanker, at different load conditions.
oai:oai.shipjournal.co:article/56
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https://shipjournal.co/index.php/sst/article/view/56
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Cotecmar
Vol. 5 No. 10; 9-17
Research in offshore transfer cargo operations; challenges, developments, and new frontiers
Suell Dutra, Max; Federal University of Rio de Janeiro (UFRJ) - Laboratory of Machine Design and Robotics. Rio de Janeiro, Brasil.
Lache, Ivanovich; Federal University of Rio de Janeiro (UFRJ) - Laboratory of Machine Design and Robotics. Rio de Janeiro, Brasil.
Ellermann, Katrin; Hamburg University of Technology (TUHH) - Department of Fluid Dynamics and Ship Theory. Hamburg, Germany.
Ramírez Heredia, Ricardo; Universidad Nacional de Colombia - Department of Mechanical Engineering . Bogotá, Colombia.
2012-01-09
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/56
offshore operations
nonlinear control
load manipulator
cargo load transfer
en_US
Currently, offshore operations are considered activities with high impact on the economy, which standsin direct relation to the products of great importance and value for diverse economic sectors. Thus, itbecomes necessary to implement new technologies that make the manipulation of these products fasterand easier. In this work, the authors introduce the problem in offshore cargo transfer operations. Thisproblem involves different kinds of areas: logistics, dynamics, and control are some of them. The authorspresent an approach for the last two. In the dynamic problem is presented a study on the dynamics of asuspended load connected to a crane via a mechanism with two prismatic degrees of freedom. The studiesshow the complex large-amplitude motion of the load given the visibly nonlinear behavior of the ship.Therefore, the development of a fuzzy controller was necessary to decrease oscillations and position theload in one definitive point of interest. The work presents the test results, demonstrating that this typeof manipulator in combination with an effective control strategy allows for the reduction of oscillationsin offshore activities.
oai:oai.shipjournal.co:article/57
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https://shipjournal.co/index.php/sst/article/view/57
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Cotecmar
Vol. 5 No. 10; 19-31
On maritime transport costs, evolution, and forecast
Polo, Gerardo; Escuela Técnica Superior de Ingenieros Navales. Universidad Politécnica de Madrid. Madrid, España.
2012-01-09
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/57
maritime transport
costs
globalization
operation costs
opex
en_US
During recent years of economic euphoria, globalization, motor of development, has been possible due to the existence of a fast, efficient, and economic maritime transport. The technological development based on scale economies, improvement of cargo-handling systems, and specialization has allowed putting on the market vessels with very competitive costs. In these years of a bright freight market, increased costs seemed not to be of much concern, so that the problem was not approached with the necessary firmness. Nowadays, things have changed: freight rates have sunk, prices of ships have fallen, and the crisis has reached ship owners. The costs, nevertheless, are still rising, with the exception of 2009 in which, for the first time in ten years, costs of operations were sensibly reduced. In the paper, the evolution of the main components of the costs of the maritime transport are analyzed, studying the current situation of such, as well as the forecasts for the near future.
oai:oai.shipjournal.co:article/58
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https://shipjournal.co/index.php/sst/article/view/58
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Cotecmar
Vol. 5 No. 10; 34-58
Shipbuilding and new requirements to reduce the environmental impact of ships: New technological challenges and business opportunities
Beltrán, Publio; Naval Architect and Marine Engineer. Director TSI- Técnicas y Servicios de Ingeniería, S. L. Madrid, España.
2012-01-09
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/58
ship environmental impact reduction
noise & vibrations
underwater radiated noise
en_US
New and increasingly demanding requirements of reducing the environmental impact of all types ofships from all countries, along with regulatory institutions like the new "Green Policy" of the EuropeanUnion, leads to the development of a series of regulations/directives, which will immediately affect boththe owner and the builders worldwide. This requires introducing modifications in the vessel design tofulfill these requirements and, ultimately, improve their exploitation while avoiding penalties and/orrestrictions. Awareness of these requirements by some Spanish owners has allowed Spanish shipbuildingto be positioned strategically at the forefront of technology to fulfill these requirements. This work, aftera review of those Directives affecting ship design, focuses on the presentation of the results obtained intwo Ro-Ro Vessels. These vessels, given their design and performances, are a "technological reference"in the new scenario of high environmental performance requirements: Noise and vibrations on board,noise radiated to the harbor, and noise radiated to the water.
oai:oai.shipjournal.co:article/59
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https://shipjournal.co/index.php/sst/article/view/59
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Cotecmar
Vol. 5 No. 10; 59-70
Optimization of a warehouse layout used for storage of materials used in ship construction and repair
Adarme Jaimes, Wilson; Universidad Nacional de Colombia Sede Medellín, Facultad de Minas. Medellín, Colombia.
Otero Pineda, María A; Universidad Nacional de Colombia Sede Bogotá, Facultad de Ingeniería. Bogotá, Colombia.
Rodríguez Quiñones, Tania A; Universidad Nacional de Colombia Sede Bogotá, Facultad de Ingeniería. Bogotá, Colombia.
Tejeda López, Lien; Escuela Naval Almirante Padilla. Cartagena, Colombia.
2012-01-09
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/59
warehouse
storage
rosenblatt and roll model
ships
en_US
The paper shows the evaluation of applying models to improve efficiency in management of warehousesused in shipyards, focused on pick up, packing, and shipping activities, supported among others on theproposal by Rosenblatt and Roll (1984) to optimize the layout for storage and handling of materials neededfor ship construction and repair. Besides proposing the best physical layout for the storage of goods, themodel seeks to minimize three types of costs: costs related to the initial investment (construction andmaintenance), shortage costs, and costs associated with storage policies. The optimal design is foundthrough analytical optimization and simulation techniques.
oai:oai.shipjournal.co:article/60
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https://shipjournal.co/index.php/sst/article/view/60
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Cotecmar
Vol. 5 No. 10; 71-80
Methodological design of a performance measurement system for the colombian shipyard supply chain
Cogollo Flórez, Juan M; Universidad Nacional de Colombia, Facultad de Minas, Escuela de Ingeniería de la Organización. Medellín, Colombia.
Arango Serna, Martín D; Universidad Nacional de Colombia, Facultad de Minas, Escuela de Ingeniería de la Organización. Medellín, Colombia.
Gómez Bejarano, Jorge I; COTECMAR. Dirección Financiera y Administrativa. Cartagena, Colombia.
Puello Ruiz, Sandra M; COTECMAR. División de Gestión Logística. Cartagena, Colombia.
2012-01-09
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/60
indicator
performance measurement
supply chain
fuzzy logic
balanced scorecard
shipyard
en_US
The design of a performance measurement system for the Colombian shipyard supply chain is shown in this paper, using a model that integrates the principles of the Balanced Scorecard with the fuzzy sets theory to treat uncertainty associated with selected logistics indicators, enabling better supply chain management.
oai:oai.shipjournal.co:article/61
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https://shipjournal.co/index.php/sst/article/view/61
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Cotecmar
Vol. 5 No. 10; 81-97
New technological surveillance and benchmarking theories and tools applied to sustainable and strategic planning of the naval industry
Álvarez, Esther; Fundación In-Nova Castilla La Mancha. Toledo, España.
Sánchez, Luis Enrique; Sicaman Nuevas Tecnologías. Tomelloso, España.
Molins, Santiago; Iscam Desarrollos. Madrid, España.
2012-01-09
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/61
technological surveillance
benchmarking
neural networks
internet
strategic planning
technological indicators
market intelligence
trackers
indexers
feeders
decision structures
search engines
semantic web
en_US
Since their beginning, companies establish procedures to observe their competitors. Methods for obtaining this kind of information have evolved with the internet era; a plethora of tools is nowadays available for this job. As a consequence, a new problem has emerged: documentary noise, keeping companies from being able to process and benefit from the huge amount of information gathered. Strategic planning mainly relies on obtaining environmental knowledge, so companies need help on dealing with this documentary noise; technological surveillance and benchmarking are preferred methodologies to achieve this objective, coping with data produced by automatic internet tools like search engines and others. Qualified results of better nature are produced by bringing new theories on information gathering and processing intoboth tools. This article exposes empirical results on the application of a demonstrative technological surveillance system based on different R&D management structures, relying on benchmarking indicators for the naval and aeronautics industries.
oai:oai.shipjournal.co:article/62
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https://shipjournal.co/index.php/sst/article/view/62
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Cotecmar
Vol. 5 No. 10; 99-105
Inter-firm cooperation strategies to develop environmental best practices in the Colombian shipyard industry
Céspedes, Ana V; COTECMAR. Environmental Analyst. Cartagena, Colombia.
Sejnaui, Alejandro D; COTECMAR. R&D Program Manager. Cartagena, Colombia.
Ortega, Milena M; COTECMAR. R&D Programs Management Division Chief. Cartagena, Colombia.
2012-01-09
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/62
best practices
environmental management
shipyard
colombian shipyard industry
en_US
The present work aims to develop strategies that allow implementingenvironmental best practices in the Colombian shipyard industry, a sector that has been growing for the last decade and that is identified as a potential world-class industry in the country. Collaborative work was carried out with four of the biggest Colombian shipyards and an international firm to identify legal and operational issues regarding the industrial activity, to reach unified consensus to represent the whole sector. Finally, an environmentalbest practices document was elaborated to guideshipyard operationsin the country, with the potential to be constituted as an official guide of the Colombian Ministry for the Environment.
oai:oai.shipjournal.co:article/66
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https://shipjournal.co/index.php/sst/article/view/66
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Cotecmar
Vol. 6 No. 11; 9-34
Project and construction of oceanographic and faisheries research vessels in Spain
Núñez Basáñez, José Fernando; Escuela Técnica Superior de Ingenieros Navales. Universidad Politécnica de Madrid. Doctor Ingeniero Naval. Catedrático de Universidad. Madrid, España.
2012-07-21
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/66
Multipurpose Oceanographic Vessels (MOV)
noise radiated
Marine Scientific Missions (MSM)
en_US
The objective of the paper is to analyze and present the specific and innovative characteristics of the multipurpose oceanographic vessels that are currently being built in Spain. The main requirement in these types of vessels is the low level of noise radiated to the water, Silent Platform, according to ICES 209, to satisfactorily exploit the evaluation of the Fishing Resources and its dynamic position capacity for operations with remote operating vehicles. These vessels are designed to carry out a wide range of research activities and have, therefore, the most modern facilities, laboratories, and equipment to undertake scientific missions in the different marine disciplines: Marine Geology, Physical Oceanography, Chemical Oceanography, Pollution, Marine Biology, and Fisheries.
oai:oai.shipjournal.co:article/67
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https://shipjournal.co/index.php/sst/article/view/67
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Cotecmar
Vol. 6 No. 11; 35-42
Analysis and prediction of welding distortion in complex structures using elastic finite element method
Vega Sáenz, Adán; Miembro del Sistema Nacional de Investigación SNI (SENACYT). Laboratorio Especializado en Procesos de Union y Manufactura (LEPUM), School of Mechanical Engineering, Technological University of Panama. Panamá City, Panamá.
Plazaola, Carlos; Laboratorio Especializado en Procesos de Union y Manufactura (LEPUM), School of Mechanical Engineering, Technological University of Panama, 0819-07289, Panamá City, Panamá.
Banfield, Ilka; Laboratorio Especializado en Procesos de Union y Manufactura (LEPUM), School of Mechanical Engineering, Technological University of Panama, 0819-07289, Panamá City, Panamá.
Rashed, Sherif; Joining and Welding Research Institute, Osaka University, 11-1, Mihogaoka, Ibaraki, Osaka, Japan.
Murakawa, Hidekazu; Joining and Welding Research Institute, Osaka University, 11-1, Mihogaoka, Ibaraki, Osaka, Japan.
2012-07-21
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/67
complex ship structures
elastic analysis
finite element analysis
inherent strain
welding distortion
en_US
The Elastic Finite Element Method based on the inherent strain theory is used to predict the welding distortion of ship structures. In addition, a method to predict welding distortion of complex structures by using elastic FEM is presented. To evaluate the effectiveness of the proposed method, a typical case of a ship's structure is examined and the resulting welding distortion is compared to that obtained by using thermal elastic-plastic finite element method.
oai:oai.shipjournal.co:article/68
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https://shipjournal.co/index.php/sst/article/view/68
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Cotecmar
Vol. 6 No. 11; 43-56
Study of the weld ability of aluminum alloy 5083 H116 with pulsed arc GMAW (GMAW-P)
Cueca, F.; Servicio Nacional de Aprendizaje SENA.
Patarroyo, A.; Servicio Nacional de Aprendizaje SENA.
Rojas, F.; Servicio Nacional de Aprendizaje SENA.
Solano, E.; Servicio Nacional de Aprendizaje SENA.
Morales, A.; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR.
Muñoz, R.; Universidad Nacional de Colombia, Faculty of Mechanical Engineering. Bogotá, Colombia.
2012-07-21
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/68
welding
pulsed arc. pulsed MIG
HAZ
discontinuities
synergic curves
en_US
This research was based on the analysis of the weldability of aluminum joints, Alloy GL AW 5083 H116, with filler AWS 5.10 ER 5183 by GMAW-P process to determine the conditions of the heat-affected zone in the base material, depending on the heat input for the GMAW-P process with different pulsed technologies available in Colombia. The variables considered within this study were: welding positions (horizontal, vertical up, and overhead), type of welded joints (butt and fillet), and parameters for welding equipment (voltage, current, speed, power supply, speed development), and protective gas used (Argon, 100%). Non-destructive and destructive testing techniques were used to characterize the discontinuities found and the criteria to accept or reject the AWS D1.2 code (STRUCTURAL WELDING CODE - ALUMINUM by the AMERICAN WELDING SOCIETY). As a result, the investigation yielded the conditions for the application of filler material (ER 5183) on base material (alloy AW5083 GL H116), supported by Welding Procedure Specifications Documents (WPS) and Procedure Qualification Record (PQR) to implement in aluminum welding at the COTECMAR shipyard.
oai:oai.shipjournal.co:article/69
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https://shipjournal.co/index.php/sst/article/view/69
2024-01-17T13:14:05Z
Cotecmar
Vol. 6 No. 11; 57-65
Shooting simulator for fluvial combat training
Rodríguez, Carlos F.; Facultad de Ingeniería, Universidad de los Andes. Bogotá, Colombia.
Hernández, José Tiberio; Facultad de Ingeniería, Universidad de los Andes. Bogotá, Colombia.
Figueroa, Pablo; Facultad de Ingeniería, Universidad de los Andes. Bogotá, Colombia.
2012-07-21
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/69
motion simulation platform
virtual training
virtual reality
en_US
Virtual shooting training has become very attractive because of possible cost reductions and precise evaluation. This article describes the development of a shooting simulator to train soldiers in fluvial combat. This simulator combines the motion of a mechanical platform with virtual imagery and sound to produce an immersive scenario for training purposes. Our prototype, which is in its last phase of construction, has four training tasks with three levels of difficulty. Initially, each task is defined in terms of a virtual trajectory, used by our custom-based motion platform to produce realistic movements, based on a simple dynamic model from real measurements. Our visualization, sound effects, and metrics are implemented on the Torque game engine. Finally, a postprocessor system computes a metrics report.
oai:oai.shipjournal.co:article/70
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sst:ARTI
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https://shipjournal.co/index.php/sst/article/view/70
2024-01-17T13:14:05Z
Cotecmar
Vol. 6 No. 11; 67-78
Side-boat tow to test the influence of flaps in a 2-meter planing craft model
Marín, José R.; Faculty of Maritime Engineering, ESPOL. Guayaquil, Ecuador.
Benites, Daniela A.; Naval Engineer, Guayaquil, Ecuador.
2012-07-21
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/70
planing boat
model test
en_US
A small craft is considered in the planing regime when its Froude number is higher than 1.2, and under that condition its weight is mainly supported by hydrodynamic pressure acting on the bottom of the hull. It is also known that installing stern flaps at a certain angle from the bottom line will alter the trim angle and, as a consequence, the resistance exerted by the water. In this work, using the classical work from Savitsky, the resistance on a planing craft is estimated, including the effect of flaps, and then the influence of those appendages on the hydrodynamic behavior of a craft of local design was experimentally verified. The wooden model was 2.0 meters long and was side towed from an outboard powered boat, with a 3.2-m arm, in a small artificial lake. The tests were run between 5 and 12 knots, with uneven intervals due to the outboard control; the model was towed without and with flaps at 5 and 10°. Finally, experimental and empirical results for towing force and trim angle were plotted. In some of the experimental curves the presence of humps may be identified, but less pronounced than with the theoretical results. Experimental resistance values are lower than those obtained from Savistky’s formulation for no flaps; in the case of flaps at 5°, the agreement in trim angle was very good. Finally, the benefit of flaps on the performance of the planing model was corroborated, but it should be emphasized that this improvement is only valid for a certain velocity range.
oai:oai.shipjournal.co:article/71
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https://shipjournal.co/index.php/sst/article/view/71
2024-01-17T13:14:05Z
Cotecmar
Vol. 6 No. 11; 57-65
Dynamic modeling of trawl fishing gear components
Freiria Pereira, Jorge; Facultad de Ingeniería, CP 11300 Montevideo, Montevideo, Uruguay.
2012-07-21
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/71
nets
fishing
numeric model
net gear
en_US
A numerical model has been developed to calculate the resistance of the different components of a trawling gear, by deduction of the drag and lift components. For this purpose, mathematical models have been considered for all the elements, such as trawl cables, floats, doors, and the net itself. The most important contribution of this numerical model is that the action of forces upon different elements permits modifying the geometric configuration of the complete set with a mutual accommodation of resistance and geometry, simulating the actual dynamics, where forces and geometry converge toward an equilibrium state. Some results obtained from actual fishing gear with data obtained from sensors during sea trials are used to compare the results of the simulator.
oai:oai.shipjournal.co:article/72
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sst:ARTI
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https://shipjournal.co/index.php/sst/article/view/72
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Cotecmar
Vol. 6 No. 11; 91-106
Analysis of radar cross section assessment methods and parameters affecting it for surface ships
Díaz Charris, Vladimir; Mechatronic Engineer, M.Sc.(c) Electronic Engineering, DIDESI Researcher, COTECMAR, Colombia.
Gómez Torres, José Manuel; Naval Electronic Engineer, MSME & MSSE, DIDESI researcher, COTECMAR, Colombia.
2012-07-21
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/72
Radar Cross Section
RCS
vessels
RAM
absorbent
prediction
navy
en_US
This article presents an analysis of the different modeling methods for predicting the radar cross section of surface ships. In the analysis, we studied the effect of different factors in vessel construction regarding the amount of electromagnetic energy returning to a radar source, such as the handling of shapes, use of different materials, and vessel size. We can see the different evaluation methods of the radar cross section and the software tools available to determine an appropriate methodology for adoption by the Colombian Navy and their subsequent integration with the design process and optimization of warships.
oai:oai.shipjournal.co:article/74
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sst:ARTI
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https://shipjournal.co/index.php/sst/article/view/74
2024-01-17T13:14:17Z
Cotecmar
Vol. 6 No. 12; 9-21
Accessibility applied to ships, case study Riverine Ambulatory Care Center (RACC)
González, Diana Lorena; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR
Areiza Frieri, Priscilla; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR
2013-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/74
accessibility
hospital ship
universal design
support products
reduced mobility
Riverine Ambulatory Care Center (RACC)
en_US
Accessibility as a design concept is generally applied in land constructions; however, the medical character of the case study requires it to be considered in the design process as of its conceptual stage. The riverine ambulatory care center (RACC) is a mobile health unit to carry out medical missions in populations located on the riverbanks; given the RACC dimensions, these have limited medical services to primary care and health brigades. Physical barriers1 are the causes for an environment being inaccessible; to eliminate them, from the RACC, an analysis and redesign was performed of the conceptual proposal, based on standards for accessibility, medical spaces, and ships. Two basic moments were taken for intervention, access and interior circulation, yielding as a result the design of an integrated system of products that eliminate the physical barriers from the environment, permitting boarding and offering medical services under equal, comfortable, and safe conditions. Accessibility as modifier of the environment to improve the quality of life of users should not only be applied in medical ships, this study opens an opportunity for industry to optimize the physical environment of other types of ships by applying this concept.
oai:oai.shipjournal.co:article/75
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sst:ARTI
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https://shipjournal.co/index.php/sst/article/view/75
2024-01-17T13:14:17Z
Cotecmar
Vol. 6 No. 12; 23-28
Vertical plane response of a ship on irregular seas
Ramírez, Diana; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR.
Altamar, Iván; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR
Cali, Marcelo; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR.
2013-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/75
seakeeping
irregular sea
coastguard patrol
SCORES
RMS
en_US
This work presents the study of the sea response on the vertical plane for a 40-m length overall coastal patrol vessel (CPV-40) of Colombia’s National Navy. The condition studied is at full load and at patrol and maximum speeds. First, we analyzed the response for regular waves with incidence angles of 90º, 120º, 150º, and 180º, obtaining the response for heave and pitch motions through the SCORES program that uses the method called “girdle theory”. From the response, it was verifiedthat the amplitudeof the response is proportional to the amplitudeof the incident wave. Thereafter, the calculation of the vertical acceleration was made for four ship positions: bow, stern, cabin, and bridge, with the greatest vertical accelerations on the bow. Finally,the study was conducted for irregular sea considering as measuring parameters the vertical acceleration on the bridge and the pitching angle for the patrol operation, from the NATO document, compliance was verified of the study parameters at RMS level. It was found that for this condition the vessel complies and, hence, the personnel will not be affected in the performance of their functions.
oai:oai.shipjournal.co:article/76
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sst:ARTI
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https://shipjournal.co/index.php/sst/article/view/76
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Cotecmar
Vol. 6 No. 12; 29-40
Computational models for anti-air and antisubmarine warfare simulation
Pérez Valdés, Gustavo; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR
Marrugo Llorente, Stefany; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR
Gómez Torres, José; Corporación de Ciencia y Tecnología para el Desarrollo de la Industria Naval, Marítima y Fluvial COTECMAR
2013-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/76
simulation
discrete events
modeling
antisubmarine warfare
anti-air warfare
experiment design
en_US
This paper describes the generation and simulation process of computational models oriented to the analysis of the operational situations (OPSIT) of anti-air warfare (AAW) and antisubmarine warfare (ASW), with the purpose of evaluating the effectiveness of different combinations of threats, weapons, and sensors of the Colombian Navy. A detailed description of the OPSITs modeling process is presented by using the selected discrete events simulation tool. The experiments design process and the statistical analysis of the results is also described, using a statistical analysis tool. All this to provide the Colombian Navy with a tool it can use to evaluate the systems that could be part of future units.
oai:oai.shipjournal.co:article/77
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sst:ARTI
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https://shipjournal.co/index.php/sst/article/view/77
2024-01-17T13:14:17Z
Cotecmar
Vol. 6 No. 12; 41-49
Development of a neural network model to predict distortion during the metal forming process by line heating
Pinzón, César; Specialized Research Center for Manufacturing and Joining Processes (LEPUM) – School of Mechanical Engineering – Technological University
of Panama.
Plazaola, Carlos; Member of the National Researcher Systems (SNI) – SENACYT, Panama.
Banfield, Ilka
Fong, Amaly
Vega, Adán
2013-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/77
network model
plate forming
distortion prediction
line heating
back propagation
en_US
In order to achieve automation of the plate forming process by line heating, it is necessary to know in advance the deformation to be obtained under specific heating conditions. Currently, different methods exist to predict deformation, but these are limited to specific applications and most of them depend on the computational capacity so that only simple structures can be analyzed. In this paper, a neural network model that can accurately predict distortions produced during the plate forming process by line heating, for a wide range of initial conditions including large structures, is presented. Results were compared with data existing in the literature showing excellent performance. Excellent results were obtained for those cases out of the range of the training data.
oai:oai.shipjournal.co:article/78
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https://shipjournal.co/index.php/sst/article/view/78
2024-01-17T13:14:17Z
Cotecmar
Vol. 6 No. 12; 51-62
Smoothing warships movements based on wavelets
Riola, J.M.; Royal Navy of Spain. C/Arturo Soria, 289. Madrid. Spain.
Girón, J.M.; Universidad Complutense de Madrid. Plaza Ciencias, s/n. Madrid. Spain.
Díaz, J.J.; Isdefe. C/Beatriz de Bobadilla, 3. Madrid. Spain.
2013-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/78
quiescent period
wavelet
ship motions
seakeeping
control
hydrodinamics
en_US
In seakeeping terminology, the Quiescent Period is known as the period of calm in rough waters to allow the ship to perform operations such as landing aircrafts and unmanned aerial vehicles (UAVs), aswell as the entry of landing crafts in the basin. Quiescence refers to the interval of time where all ship motions are within acceptable limits to perform a desired activity. Among the key issues for Quiescent Period Prediction is to be able to measure waves from a suitable distance and predict ship motions in response to waves encountered; both aspects are crucial and must be taken into account. Many of the opearations performed at sea are carried under severe weather conditions, as a result of this situation there is a need to determine this called “window of opportunity” that allows carrying them out. The paper aims to explain from the point of view of Quiescent Period Prediction, the most promising wave measurement systems, which are currently based on radar, but the main question is that if we want predictions a few seconds ahead, it will be appropriate to measure waves at a distance of some hundreds of meters, describing the new mathematical model based on wavelets in determining the spread of the waves from their initial measurement until they reach the vessel.
oai:oai.shipjournal.co:article/80
2024-01-17T13:14:29Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/80
2024-01-17T13:14:29Z
Cotecmar
Vol. 7 No. 13; 9-21
Application of Operational Effectiveness Models in Naval Ship concept exploration and design
Brown, Alan J.; Virginia Polytechnic and State University
2013-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/80
ship design
operational effectiveness models
systems engineering
en_US
Traditionally, the Concept and Requirements Exploration process is the first stage of ship design. Concept and Requirements Exploration responds to a stated mission need with early high-level assessment of a broad range of ship design options and technologies. Our design group uses a Multi-Objective Optimization approach to explore the design space and identify non-dominated designs ranked by cost, risk, and effectiveness. Our method of calculating effectiveness in this approach has, in the past, been based on expert opinion. In this study, the use of a more direct physics-based Operational Effectiveness Model approach is considered to provide greater confidence in the validity of effectiveness results and a perception that results are more unbiased and rational. This approach requires significant early investment. How much analysis is enough and is there significant payoff for this significant effort? This paper presents this approach and explores these questions.
oai:oai.shipjournal.co:article/81
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sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/81
2024-01-17T13:14:29Z
Cotecmar
Vol. 7 No. 13; 23-36
A Frigate in 10 years - Challenges and Opportunities
Lamb, Thomas; College of Engineering
2013-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/81
naval ship design
naval shipbuilding
required manning level
acquisition options
technology transfer
academic needs
national shipbuilding program
en_US
Colombia is involved in preliminary philosophies regarding the acquisition of frigates in the next 10 years. This presents many challenges as well as opportunities. This not a unique situation as many maritime countries have struggled with this matter over the past 50 years. The question that quickly arises is whether a country should design and construct new naval ships themself or follow one or a combination of the many options that have been used over this period. This presentation will review these options as both challenges and opportunities and hopefully provide a starting point for important discussions of this subject.
oai:oai.shipjournal.co:article/82
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v2
https://shipjournal.co/index.php/sst/article/view/82
2024-01-17T13:14:29Z
Cotecmar
Vol. 7 No. 13; 37-45
Assessment of appendage effect on forward resistance reduction
Salas, Marcos; University Austral of Chile
Tampier, Gonzalo; University Austral of Chile
2013-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/82
forward resistance
appendages
numerical tests
experimental tests
CFD
towing tank
en_US
This paper shows experimental and numerical results of three types of appendages on forward resistance reduction of displacement and semidisplacement hulls. Forward resistance results were obtained by using Computational Fluid Dynamics and towing tank tests. The appendages evaluated are stern flaps and interceptors for displacement hulls and spray railspray rails for a semiplaning hull. The experiments are independent from each other and no research was undertaken to include the combined effect of appendages on a single hull. The predicted reduction in forward resistance in all three tested devices is around 5-10%, showing potential for fuel saving through the evaluation of hydrodynamic effects of energy saving appendages.
oai:oai.shipjournal.co:article/83
2024-01-17T13:14:29Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/83
2024-01-17T13:14:29Z
Cotecmar
Vol. 7 No. 13; 47-52
Design based on reliability of naval multilayer fiber composite panels using evolutionary algorithms and stochastic structural mechanics
Useche, Jairo F.; Universidad Tecnológica de Bolívar
Giraldo, Guillermo; Universidad Tecnológica de Bolívar
2013-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/83
naval composite panels
reliability design
simulation-based reliability analysis
genetic algorithms
optimization
finite element method
en_US
The complexity of sea wave loads and the number of design variables involved in the design of laminated composites for naval applications makes this a challenging problem. Traditional methodologies for engineering design and analysis are not suitable to deal with these kinds of design problems. This work presents a methodology based on evolutionary algorithms and stochastic structural mechanics to design high-reliability naval multilayer composite structural panels.. The mechanical response of structural panels was modeled by using the Multilayer First Order Shear Deformable Plate Theory and the Finite Element Method. Sea wave loads were modeled as stochastic dynamic loads by using the Simulation Based Reliability Analysis approach. The structural reliability of the panel, as a function of the composite ply’s fiber direction, was considered a design variable. In order to maximize the structural reliability, an optimization methodology based on Genetic Algorithms was proposed. For the design process, a computational code using FORTRAN® and the OpenMP® library for parallel computing was developed. The proposed methodology was applied to the design of composite naval panels and results were compared to those obtained through traditional design methodologies. The results show increased reliability of the panels in all cases analyzed. The proposed methodology is, thus, shown as a reliable engineering tool to optimize the structural performance of existing designs.
oai:oai.shipjournal.co:article/84
2024-01-17T13:14:29Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/84
2024-01-17T13:14:29Z
Cotecmar
Vol. 7 No. 13; 53-63
Generation of Three-Dimensional Image of Objects Submerged in Murky Water
Muñoz, David J.; Escuela Naval Almirante Padilla
Archbold, George; Escuela Naval Almirante Padilla
Delgado, Geraldine; Escuela Naval Almirante Padilla
Muñoz, Leydi V.; Universidad del Cauca
Contreras, Juan; Escuela Naval Almirante Padilla
2013-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/84
three-dimensional digitizing
triangulation
thresholding
skelotonization
rendering
en_US
This article presents the design and implementation of a novel method to generate 3D coordinates from the projection of a laser line over a solid object and the processing of the images obtained during scanning. The result obtained is a 3D model of an isometric view that provides the possibility of being seen from different perspectives under a virtual environment. The methodology is applied in the capture and reconstruction of 3D images of objects submerged in murky waters.
oai:oai.shipjournal.co:article/85
2024-01-17T13:14:29Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/85
2024-01-17T13:14:29Z
Cotecmar
Vol. 7 No. 13; 65-74
Analysis of most frequent cases of vibration in propulsion systems
Domínguez Ruíz, Franklin Jhonny; Tecnavin S.A.
2013-07-30
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/85
vibration
torsional
lateral
noise
fracture
propulsion
en_US
This study is a review of cases of propulsion systems in which noise, vibration, or fracture problems have existed. Case studies are presented on passenger vessels, tugboats, tankers, and ferry boats. Each case is addressed based on lateral, torsional, axial vibration analysis, as well as the case analysis of the possible coupling of frequencies or possible defect or deterioration of a component. Based on the cases, a summary is presented of inertial masses of each system analyzed to establish possible problems and benchmark statistical considerations when selecting the components of a propulsion system. Calculations were performed using the ShaftDesigner software from Machine Support, Holland and Torcal software from Tecnavin S. A.
oai:oai.shipjournal.co:article/90
2024-01-16T16:31:49Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/90
2024-01-16T16:31:49Z
Cotecmar
Vol. 7 No. 14; 9-14
Isotropic Modeling of a Composite Panel of the Stern of a Fiberglass Boat Propelled by an Outboard Motor
Townsend Valencia, Patrick; Navalocean
2014-01-26
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/90
Sandwich
module
finite
composite resin
en_US
We performed a theoretical and experimental study to define the best way to model the finite element sandwich structure aft of a fiberglass boat less than 15 meters in length, using an isotropic linear mathematical model that fits anisotropic material conditions. This is done by defining the properties of the ship’s fiberglass resin structure, which is representative of the influence of the forces acting during the glide on the geometry of the entire vessel. Formulation of the Finite Elements Method is presented, which works on the mathematical model to define the limitations of the results obtained. Isotropic material adjustment is calculated using Halpin-Tsai laws, developing its mathematical formulation for restrictions of modulus data entered as the finite element program experimentally calculated for each of the sandwich materials. The best-fit mathematical presentation to the modulus of the composite tool justifies the calculation thereof.
oai:oai.shipjournal.co:article/91
2024-01-16T16:31:49Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/91
2024-01-16T16:31:49Z
Cotecmar
Vol. 7 No. 14; 15-26
Stability of Ships with a Single Stranding Point
de Sousa Bastos, Paula C.; Technical School, Federal University of Rio de Janeiro.
Tapia Reyes, Marta C.; Technical School, Federal University of Rio de Janeiro
2014-01-26
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/91
stranding
single point
stability
algorithm
refloating
en_US
During rescue operations of stranded vessels, it is essential to make immediate and reliable decisions to optimize the successful salvage potential and minimize risks of environmental damages and cost impacts. Pursuant to this scenario, the need arises for a numerical tool, which can more accurately forecast the stability conditions experienced by a vessel after running aground and help in the refloating operations of the unit. This study seeks to develop an adequate calculus systematization, which provides analytical capabilities for operational situations in case of stranding, thereby, supporting the decisionmaking process in these risk situations.
oai:oai.shipjournal.co:article/92
2024-01-16T16:31:49Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/92
2024-01-16T16:31:49Z
Cotecmar
Vol. 7 No. 14; 27-42
Multiobjective Optimization of a Submarine Hull Design
Mora Paz, Jaime David; Cotecmar
Tascón Muñoz, Oscar Darío; Cotecmar
2014-01-26
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/92
submarine design
maneuverability
slender-body theory
genetic algorithm
multiobjective optimization
en_US
A synthesis model for the concept design of a submarine is developed consisting of a parametric definition of the hull geometry, a maneuverability model based on slender-body theory, and a resistance formulation. This coupled model is suitable to be treated by a metaheuristic multiobjective optimization technique (a genetic algorithm) to find a set of design options that satisfy the need to minimize simultaneously the turning diameter and the resistance generated. According to typical data found in submarines like the one analyzed herein, the boundaries and some constraints are set for the design variables. Finally, some solutions for this design case are obtained considering the criteria adopted in this study.
oai:oai.shipjournal.co:article/93
2024-01-16T16:31:49Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/93
2024-01-16T16:31:49Z
Cotecmar
Vol. 7 No. 14; 43-66
The Most Recent Noise & Vibration Assessment of the European Fleet, within the Framework of the “SILENV Project”
Beltrán Palomo, Publio; TSI-Técnicas y Servicios de Ingeniería
2014-01-26
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/93
Noise
Vibration
Noise radiated to harbour
Noise radiated to the water
Underwater footprint
en_US
The EU’s new “Green Policy” to reduce the environmental impact of all types of vessels is generating new Directives that shall affect the Shipbuilding Industry. As a direct consequence, an intense debate has been opened with the participation of all the players involved: the European Commission, Marine Institutions, Shipbuilding Industry, Marine Sector, and Scientific Community. Participation of the authors in the SILENV, BESST, and AQUO projects within the FP7 has permitted noticing that for the complete assessment of the ships’ environmental impact it is essential to introduce the new so-called Noise & Vibration – Full Signature indicator. In addition to the well-known topics of Noise & Vibration (N&V) on board, it includes new ones: Noise Radiated to Harbour and Underwater Radiated Noise (URN) by the ships. Both, but especially the latter (URN) became the most outstanding novelty and the biggest challenge to be technically solved. In this sense, it is essential to know the “Starting Point”: How far is the current European Fleet from the Standard Regulations and from other Directives that will soon be compulsory? And which are the technical reasons and root causes of these deviations? To address these issues within the framework of the SILENV Project, the most recent N&V database compiled with 171 ships from the European Fleet and 12,000 N&V experimental data have been assessed. It became the largest ever N&V database in the marine sector, as well as a complete novelty. Therefore, the results, conclusions and recommendations obtained from it are of paramount importance to support current policies of the EC and other Marine Institutions that focus their efforts on combating the environmental impact of the ships.
oai:oai.shipjournal.co:article/94
2024-01-16T16:31:49Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/94
2024-01-16T16:31:49Z
Cotecmar
Vol. 7 No. 14; 67-75
Underwater Multi-influence Measurements as a Mean to Characterize the Overall Vessel Signature and Protect the Marine Environment
Sánchez García, Antonio; Joint-stock company of Submarine Electronics (SAES).
Hernández Solano, Adolfo; Joint-stock company of Submarine Electronics (SAES).
Rodrigo Saura, Francisco J.; Joint-stock company of Submarine Electronics (SAES).
Muñoz Esparza, Patricio; Joint-stock company of Submarine Electronics (SAES).
2014-01-26
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/94
vessel signature
multi-influence
underwater measurement
environmental protection
portable systems
en_US
The overall signature of a vessel comprises acoustic, magnetic, electric-field, pressure, and seismic radiations. Over the past years, the international community’s efforts have mainly centered on reducing the acoustic influence with the dual aim of decreasing the vessel’s detectability and reducing the levels of acoustic pollution generated in the marine environment. Nowadays, the need to act not only on the acoustic radiation but against the overall set of the vessel’s radiations is becoming increasingly clear, both in the military and the civilian fields, based on aspects like vessel stealthiness, security of harbor and critical infrastructures, and environmental protection. As a key element to achieve this goal, it is greatly important to have at our disposal highly modular and adaptable measurement systems covering the overall set of the vessel’s radiations, with a high capacity of data transmission to base centers to have the capacity to make measurements in all kinds of marine environments.
oai:oai.shipjournal.co:article/95
2024-01-16T16:31:49Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/95
2024-01-16T16:31:49Z
Cotecmar
Vol. 7 No. 14; 77-90
Action Plan for Restructuring the Technology of a Medium-Sized Shipyard
Wanner, Martin-Christoph; Fraunhofer Application Centre for Large Structures in Manufacturing
Kothe, Ulrich; University of Rostock, Department of Mechanical Engineering and Marine Technology, Professorship for Manufacturing Technology
Eggert, Martin; Fraunhofer Application Centre for Large Structures in Manufacturing
2014-01-26
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/95
shipyard
restructuring
productivity
en_US
Last years, a medium-sized shipyard has specialized in building tankers for chemicals. This is planned to increase the production of shipyard in medium or long terms for 4-6 boats. To achieve these objectives, the changes have to be made in all kinds of services shipyard. These changes have to take place in the organization, as well as in technological areas. In the first phase of analysis, there has been a single sequence analysis of part 1, where they perform six different methods that resulted in a large number of solutions that will help restructure of shipyard.
oai:oai.shipjournal.co:article/96
2024-01-16T16:31:49Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/96
2024-01-16T16:31:49Z
Cotecmar
Vol. 7 No. 14; 91-101
Design Model of a Hydrodynamic Towing Tank for Colombia
Toncel Zuleta, Wilson; Universidad Tecnológica de Bolívar. Faculty of Engineering, Department of Mechanics and Mechatronics
Cabrera T., Jairo; Universidad Tecnológica de Bolívar. Faculty of Engineering, Department of Mechanics and Mechatronics
2014-01-26
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/96
Ship model hydrodynamic tank
wave generation
PMM
ship model scale
en_US
This paper develops a methodology for the design of a hydrodynamic ship tank model and its main components considering the current and projected needs of the maritime and river industry of Colombia. Besides allowing resistance, seakeeping, and maneuvering model tests with international standards.
oai:oai.shipjournal.co:article/97
2023-06-22T18:56:51Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/97
2023-06-22T18:56:51Z
Cotecmar
Vol. 16 No. 32 (2023); 33-42
A Truly Sustainable Digital Transformation Model for the Naval Sector
Velandia, Gustavo; Ministerio de Defensa Nacional, Bogotá D.C.
2023-01-31
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/97
industry 4.0
digital transformation
naval
digitalization
en_US
This document aims to show the meaning and real implications of implementing a Digital Transformation in the naval sector, explaining its three components (People - Processes - Technology), as well as the consequences of the bad practices of its application through real cases of global resonance. Subsequently, an approximation to the requirements to carry it out in an adequate and sustainable manner are stated, by understanding the concepts of the executive level that will help strategic alignment and the application of tools to achieve it, and then explain how to design and execute a Digital Transformation Strategy in any organization. Finally, a model to create a sustainable Digital Naval Industry is offered, leveraged by Industry 4.0 technologies, presenting mechanisms such as the creation of a national and regional naval cluster, which allows free exchange of data and open information in real time, whose enabler will be the Unified NameSpace (UNS).
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Cotecmar
Vol. 8 No. 15; 9-23
VORGES - A procedural Model for Total Ship System Engineering Develop by MTG MARINETECHNIK
Neumann, André
2014-07-20
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/99
Model
Total ship system engineering
planning
en_US
Naval vessels are highly complex and sophisticated systems. The core issue concerning the planning of a future naval vessel is to identify operational needs, respective requirements and corresponding technical solutions, which are afordable in line with the budget. Due to the complexity of a naval vessel, it is impossible to answer thisquestion by assigning a specific amount of money to a specific requirement. To address this issue, MTG developed the procedural model for total ship system engineering – called VORGES (VOrgehensmodell GEsamtentwurf Schiff) – that starts in the very early planning phase, enabling the procuring authority to generate a referencedesign that balances functional and technical requirements with the available budget. VORGES is an iterative and flexible process of continuous evolution that additionally involves the customer and end-user. With respectto user requirements, VORGES includes the generation of several conceptual and preliminary designs at different detail levels. The resulting design alternatives will be evaluated and compared against each other for critical factorslike life cycle costs, project risks, military performance or requirements fulfilment. This will enable the procuring authority to make a comprehensive decision for the optimum design at the highest e#ciency level of budget expenditure, hence, resulting in the formulation of the technical requirements for procurement.
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Cotecmar
Vol. 8 No. 15; 25-34
Identification and Adaptive Fuzzy Control for Navigation Systems of Autonomus Vehicles
Contreras, Juan
Ariza, Manuel
Velásquez, Luís
Ramos, Alcides
Díaz, Vladimir
Arbeláez, Julián
2014-07-20
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/100
identification
root locus
PID control
fuzzy PI control
self-tuning
en_US
This article presents a simple method to generate the automatic course control of surface naval vehicles by using fuzzy logic to adjust the parameters of the PID controller. The fuzzy systems constructedto automatically adapt the parameters of the PID controller are Mamdani type and use functions oftriangular relevance for the antecedent and the consequent. An application to a real model is presented,exposing the identification process to obtain the mathematical model from experimental data, thetemporal analysis from the mathematical model, obtain the parameters from the PI controller, and theresults on course changes between 125° and 305°. Thereafter, and bearing in mind the range of Kp and Ti parameters in which the system is stable, a structure of a self-tunable fuzzy PI controller was presentedand implemented with notable improvement in the response system.
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Cotecmar
Vol. 8 No. 15; 35-43
Analysis of Dynamic Stability of Planing Craft on the Vertical Plane
Algarín, Roberto
Tascón, Oscar
2014-07-20
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/101
Slamming
Porpoising
planing boats
dynamic stability
en_US
A dynamic model for the motion of planing craft on the vertical plane was developed; the motions ofsurge, heave, and pitch are coupled. Critical conditions that produce the inception of instability are evaluated. The Wagner model (1932) for 2D impact is extended for section with knuckles. Planing hullswere analyzed through the application of slender body theory. The results are compared with Tveitnes(2001), Peterson (1997), Savitsky (1964), Troesch (1992) and Celano (1998).
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Cotecmar
Vol. 8 No. 15; 45-60
Reduction of Underwater Radiated Noise from Ships: New Shipbuilding Challenge. The Vessels "Ramón Margalef" and "Ángeles Alvariño" as Technological References of How to Build Silent Vessels
Beltrán Palomo, Publio
2014-07-20
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/102
Underwater-Radiated Noise
Noise and Vibration on ships
Silent Ships
en_US
Abatement of noise radiated by all kinds of vessels, and specially Underwater-Radiated Noise, because of its impacton marine life, has become the most outstanding novelty and the most dificult challenge the shipbuilding industryhas ever faced. Hence, the industry seeks to other new solutions to comply with the new guidelines and requirementsthat have been recently introduced and promoted by the EU, marine institutions, and the scientific community. "isnew topic, already studied and solved by the navies because of their strategic requirements, is now in the limelight andall the different aspects are being studied and discussed among the different players mentioned. In this new trend, theappearance of some class notations with “different limits”, assertions such as that the “propeller” is the major noise source,and the absence of consensus among the biological community about what should be the limits (for not affecting marine fauna), it is difficult to define the technological steps that should be followed. Until a consistent agreement is reached, the shipbuilding industry and the naval engineers will be “fighting against a ghost”. Within this “confusing scenario”, this paper is a clear example of how the Spanish shipbuilding industry is moving ahead to reduce the impact of new ships. The dynamic and acoustic design, developed by the authors, of the fishing research vessels “Ramón Margalef” and “Ángeles Alvariño” for the Oceanographic Spanish Institute and the experimental results obtained, in full compliance with ICES N°209 Underwater-Radiated Noise requirements, makes them reference vessels for the construction of “Silent Vessels”.
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Cotecmar
Vol. 8 No. 15; 61-67
Energy Efficiency: an opportunity for Research and Improvement
Guerrero Gómez, Luis
Espín García, Montserrat
2014-07-20
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/103
Energy efficiency
regulatory framework
energy efficiency design index
energy efficiency operational index
ship energy efficiency management plan
en_US
In this paper, Bureau Veritas explains the new international regulations on air pollution, its origin, and its position in the marine market to help and develop several technical solutions suitable to the world’s fleet.
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Cotecmar
Vol. 8 No. 15; 69-74
ROV Design for Pluvial Applications
Lozano, Carlos
Dutra, Max
2014-07-20
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/104
ROVFLUV
Applied Robotics
Mechanical Design
Environmental Protection
Structure Analysis
en_US
Brazil is a country where disaster levels increase each year due to changing climatic conditions, principallyin the south east region. Disorganized occupation in urban areas, with inadequate structures increasesthe probability of these disasters. This work sought to study environments with high levels of floods and river overflow by using a robot, which could monitor the soil of possibly polluted rivers, as well assediments and detritus. This work shows a proposal for a mechanical structure that will be used as aprototype for future developments. Two different alloys of materials and dimensions were tested for thesame structure; the first one is "2024-T4" aluminum, and second one is "ASI 316” steel. "e best resultsin terms of safety factor (SF) were obtained with the aluminum alloy with 4.64 SF. The structure shows mechanical characteristics that allow the usability for the proposed application; Solid Works was usedfor tests and designs.
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Cotecmar
Vol. 8 No. 15; 75-90
Anti-fouling Paints Based on Extracts of Marine Organisms from The Colombian Caribbean
Puentes, C.
Carreño, K.
Santos-Acevedo, M.
Gómez-León, J.
García, M.
Pérez, M.
Stupak, M.
Blustein, G.
2014-07-20
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/105
biofouling
sponges
sea cucumbers
anti-fouling paints
en_US
Habitually, control of biological fouling includes application of paints containing toxic substances that end upcontaminating marine ecosystem. Many organisms prevent settlement of other species synthesizing secondarymetabolites that could be used in the elaboration of environmentally friendly anti-fouling paints. This work evaluated the behavior of anti-fouling paints based on extracts from marine invertebrates in the ColombianCaribbean: Agelas tubulata, Myrmekioderma gyroderma, Oceanapia peltata, Aplysina lacunosa, Neopetrosia próxima,and Holothuria glaberrima. The painted panels were submerged in the port of Mar del Plata (Argentina); after 90 days in the sea signi!cant differences were registered in the total coverage between the painted panels andthe controls (p<0.05). The results obtained represent important progress toward using natural compounds incontrolling encrustations.
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Cotecmar
Vol. 8 No. 16; 9-18
Development of a Comparison Method of Sonar Systems for Surface Platforms
Cortes Ciro, Andrés
Pinzón Villarroel, Ennio Emanuel
2015-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/107
sonar systems
acoustic wave
propagation
simulation
Matlab
en_US
This work sought to study the models of acoustic signal propagation in marine environments according toopen literature currently available, by interpreting the different effects occurring during their propagationand their characteristic principal parameters; identifying models of underwater acoustic propagation thatmay occur and its corresponding simulation for its understanding. Software, denominated BELLFAT,was developed in Matlab, which permits predicting, evaluating, and analyzing the capabilities of anactive sonar system. Such can function by taking depth, temperature, salinity in the sea of any referencearea and the characteristics of the sonar to evaluate. Thus, this computational tool is established to studymarine sonar systems sought to be developed or as a key piece to establish the characteristics active sonarmust have for the purposes of a surface platform.
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Cotecmar
Vol. 8 No. 16; 19-28
Fuel-Cell Integration on Board Surface Ships
Fuentes, David Ignacio
de Lavalle Pérez, Hernán
2015-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/108
Alternative energy
fuel cells
greenhouse effect gases
generator
PEMFC
en_US
Given the high levels of air pollution around the world, produced by the emission of greenhouse gases,the shipbuilding industry is in search of a "zero emissions" ship. To achieve this, research groups, havefocused on the further investigation of the fuel cells. These devices can produce energy by only usinghydrogen and oxygen as main power sources, having the next advantages features: low noise production,no emissions, and high efficiency. They can also be integrated with other systems. As Jules Verne wrote inhis “The Mysterious Island”, one day water will be used as fuel. The hydrogen and oxygen that constituteit, used alone and simultaneously, produce inexhaustible heat source and light intensity much greaterthan that of coal.
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Cotecmar
Vol. 8 No. 16; 29-42
Implementation of Confirmation of Methods in Measurement Equipment Calibration as a Normalized Strategy to Ensure the Quality of Measurements Made in the Construction, Repair, and Modernization of Ships and Naval Artifacts in COTECMAR
Argote Guzmán, Ronald Yesid
2015-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/109
Ship
calibration
metrology
Methods Confirmation
quality assurance
en_US
The naval, maritime and riverine industry is one of the sectors, which has greater contribution to theworld economy, hence, quality assurance is one of the main priorities in all maritime activities, especiallythe ones related to ship building. The monitoring of different variables that allows good performance of aship involves assessing equipment in order to assure data taking with greater precision and accuracy; thisis where metrology takes place as a science for studying inherent problems to measurement data collection,focusing on equipment calibration. The grade of uncertainty produced by data taking procedures of eachequipment on board of ship depend on techniques and results control specifications, which are knownas Methods Confirmation. The metrology laboratory at COTECMAR applied this method to guaranteequality by estimating validity and reliability of the obtained results through different measuringequipment related to ship construction and repairing.
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Cotecmar
Vol. 8 No. 16; 43-56
Solution to the Anti-aircraft Fire Control Problem on a Naval Platform Using the Direct Geometric Model
Gil, Francisco
Vivas, Andrés
2015-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/110
Fire control systems
geometric model
modeling
en_US
To find the kinematic model in applications different from robotics, the free-body diagram and coordinateconversion using Euler angles is frequently used. In robotics the Khalil-Kleinfinger (1986) method is used(and others), which allows coordinate conversions over several joints. In this paper a new application ofthis method to solve the fire control problem of a naval anti aircraft gun is proposed. To demonstrate theapplication a virtual model is built using Virtual Reality Modeling Language (VRML) and controlledby Matlab Simulink®. From the direct geometric model the solution of the problem is found, includingthe detection system, platform, gun and flight of the missile. This model serves as a tool for the design,testing and integration of controllers for the gun and detection system. The prediction algorithms ofthe trajectory of the target and the missile in flight models can also be integrated. The results show thatthe geometric model of complex systems with many degrees of freedom can be constructed in a precise,methodical and easy to understand manner.
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Cotecmar
Vol. 8 No. 16; 57-75
Fatigue Analysis of the Structural Bottom of an Aluminum Planing Craft through Vibratory Load of the Propeller System
Marín, José
Cuenca, Carlos
2015-01-23
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/111
planing craft
fatigue
en_US
This work analyzed the structural fatigue of a high-speed craft, which has a propeller system formed by two 493-hpengines connected through speed multipliers to water jet systems. Its aluminum alloy structure has combined-typeframing. The useful life of the boat bottom’s structure was determined considering the cyclical loads generatedby the propulsion system, using the Finite Elements method and applying the effort-number method of cycles tofailure. For this, a structural model was developed of the selected zone, which was analyzed with the SAP2000program, to obtain complex amplitudes of the stress supported by the structure. Thereafter, with these results thestress range was determined and, then, using S-N curves for Aluminum the number of cycles that needed to becarried out by six structural details selected was determined, for its failure. Using Miner’s Rule, combined with thecraft’s assumed work modes, the time of the useful life time of the referential details selected during an hour wasdetermined. Finally, if the craft operates for three hours per day, the bottom structure of the boat analyzed wouldhave a useful life of 14.5 years, when working principally in low speed rating.
oai:oai.shipjournal.co:article/117
2024-01-16T16:25:02Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/117
2024-01-16T16:25:02Z
Cotecmar
Vol. 8 No. 17; 9-18
Reenactment of a bollard pull test for a double propeller tugboat using computational fluid dynamics
Vega, Adan
López Martínez, David
2015-07-08
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/117
Bollard pull test
tugboat
power
simulation
modelling
computational fluid dynamics
en_US
Use of CFD simulations is an affordable and trustworthy way of determining a vessel’s capacity before its construction. This study focuses in simulating a bollard pull of a specific tugboat and comparing the results with those of the real test to which it was subjected after construction. In compliance with the regulations of the classification societies regarding these types of tests, simulations will be carried out to study the bollard pull tests of a double propeller two boat. The results showed that the mathematical model is suitable for a numerical calculation of the bollard pull tests.
oai:oai.shipjournal.co:article/118
2024-01-16T16:25:02Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/118
2024-01-16T16:25:02Z
Cotecmar
Vol. 8 No. 17; 19-29
Designing for the Gap: The space between the OPV and the Frigate
Kimber, Andy
2015-07-08
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/118
Capability
Survivability
Modularity
Affordability
en_US
One of the enduring struggles for the warship designer has been the design of the affordable warship; a ship that offers useful military capability at a fixed and ideally lower price than a pure frigate or destroyer type. BMT has been investigating this design space, through the creation of a patrol ship design called the “Venator 110”, using a variety of tools to measure performance rapidly. A capability modelling tool has been developed to rapidly compare how different designs achieve military roles and how modular systems may be used to enhance a platform. Investigations have also focused on exploring methods of achieving pragmatic enhancements to survivability. These draw on the company’s experience in developing naval and auxiliary ships which use a mix of naval and commercial equipment and practises to “tailor” survivability. Finally, design solutions that offer maximum flexibility have been incorporated within the design to explore their practicality.
oai:oai.shipjournal.co:article/119
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sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/119
2024-01-16T16:25:02Z
Cotecmar
Vol. 8 No. 17; 31-46
Cost estimation and cost risk analysis in early design stages of naval projects
Rudíus, Michael
2015-07-08
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/119
Cost Estimation
Cost Risk Analysis
Design and Engineering
VORGES
Risk Minimization
Budget Planning
Program Acquisition Cost
Life Cycle Cost
en_US
During the design and engineering process for naval projects a comprehensive cost management is required. The overall aim is to ensure the financial feasibility throughout the project with a low financial risk. Cost management combines acquisition costs and in-service costs in order to obtain life cycle costs. In this context methods for cost estimation have to be adapted to the phase of the planning process of a naval vessel. This paper introduces challenges and solutions for the cost estimation in general and describes MTGÅLs cost estimation approach for conceptual and preliminary designs. Additionally the utilization of cost risk analyses in order to ensure a reliable budget planning and the identification of cost risk drivers will be described.
oai:oai.shipjournal.co:article/120
2024-01-16T16:25:02Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/120
2024-01-16T16:25:02Z
Cotecmar
Vol. 8 No. 17; 47-56
SWATH- A new concept for the Safety and Security at Sea
Grannemann, Fritz
2015-07-08
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/120
Small Waterplane Area Twin Hull
seakeeping
platforms
ship design
en_US
SWATH means Small Waterplane Area Twin Hull and is guarantor for excellent sea keeping behaviour.The basis of this ship type was born in the 1960’s and 70’s when semi-submersible vessels were introduced to the offshore market. Naval architects developed these vessels further and it was used as navy test craft, pilot tender, yachts, passenger boats etc.The German Shipyard Abeking & Rasmussen has more than 100 year of experience in innovative ships and designs. Since 1999 more than 20 SWATH vessels like pilot tender, pilot station vessel, explorer yacht, wind park maintenance tender, offshore patrol vessels and a hydrographical research vessel were built.This paper should give an insight to the SWATH technology and the implementation in the market. Different applications and ideas will be shown. Whatever you need - a navy ship, a workboat, a multipurpose platform a ferry or a yacht – there are many possibilities.
oai:oai.shipjournal.co:article/121
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sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/121
2024-01-16T16:25:02Z
Cotecmar
Vol. 8 No. 17; 57-68
Infrared Signature Analysis of Surface Ships
Marrugo Llorente, Stefany del P.
Díaz Charris, Vladimir
Gómez Torres, José M.
2015-07-08
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/121
Infrared (IR) signature
MWIR
LWIR
IRSS
ShipIR
en_US
The process of analyzing IR signature of a vessel is described in this document, which was developed using the ShipIR/NTCS software. As important aspect of the process, highlighting the pre-processing stages of the geometry under study and characterization of the environment. This document contains the results obtained for different background conditions, varying the type of sensor used, their distances and height measuring speed vessel under study and the time of day.
oai:oai.shipjournal.co:article/122
2024-01-16T16:25:02Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/122
2024-01-16T16:25:02Z
Cotecmar
Vol. 8 No. 17; 69-85
Development of Fire Fighting & Damage Control automation that enables future crew reduction
Geertsma, Rinze
Badon Ghijben, Nine
Middeldorp, Erik
Ruiter, Robin de
2015-07-08
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/122
Battle Damage Repair
Damage Surveillance & Control (DSAC)
Fire Fighting & Damage Control (FFDC)
en_US
The Holland-class Patrol Vessels of the Royal Netherlands Navy has been designed to conduct world-wide operations with a low level of violence. Minimization of the exploitation costs has been translated in a frigate size vessel design to be manned by a crew of 50. In particular, the support of Battle Damage Repair required serious development as today’s solutions are based upon having a much larger crew. Adoption of modern fire-fighting techniques such as ship-wide deployment of automated water-mist systems and extensive use of center-fed hose reels appeared to be essential steps to cope with lower manning levels. However, that is not enough as there are other internal battle aspects that (today) require significant manpower such as information gathering to obtain the desired situational awareness of the current state of the damage, and complex engineering tasks to mitigate the damages and the management of the necessary resources. For this reason, this paper discusses the approach and development of four (4) platform management system Damage Surveillance and Control (DSAC) applications as an example how future internal battles can be supported to achieve a higher quality (less human errors) of battle damage control, by means of a better situational awareness and a significant reduction of the workload during Battle Damage Repair.
oai:oai.shipjournal.co:article/123
2024-01-16T16:25:02Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/123
2024-01-16T16:25:02Z
Cotecmar
Vol. 8 No. 17; 87-99
Structural Analysis of an Aluminum Multihull
Fuentes, David
Salas, Marcos
Tampier, Gonzalo
Troncoso, Claudio; Profesor Universidad Austral de Chile. Valdivia, Chile
2015-07-08
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/123
Multihull
structural analysis
finite elements
en_US
Structural analysis of a multihull is relatively complex since the connecting structure introduces additional stress than those typical of a monohull. The aluminum trimaran presented in this work was designed within the framework of the research project “Conceptual Design of a High-performance Vessel for Passenger Transport in Chile’s Austral Zone”. The trimaran was structurally measured using the regulations of classification societies Germanischer Lloyd, Det Norske Veritas y LloydÅLs Register. For the scantlings obtained with each regulation a Finite Element Model was created and the structural analysis for the slamming and splitting moment events was made. The results were analyzed and the stress concentration zones were determined to compare them with admissible stresses and conclude whether the structural sizing adequately and safely responds to the design stresses.
oai:oai.shipjournal.co:article/125
2024-01-16T16:22:42Z
sst:ARTI
v2
https://shipjournal.co/index.php/sst/article/view/125
2024-01-16T16:22:42Z
Cotecmar
Vol. 9 No. 18; 9-23
Propulsive Qualities of Catamaran Vessels
Riola, José María
2016-01-29
The authors who publish in this Journal certify that:The work submitted for publication in The Ship Science and Technology journal, was written by the author, given that its content is the product of his/her direct intellectual contribution.All data and references to material already published are duly identified with their respective credits and are included in the bibliographic notes and quotations highlighted as such.All materials submitted for publication are completely free of copyrights; consequently, the author accepts responsibility for any lawsuit or claim related with Intellectual Property Rights thereof, Exonerating of responsibility to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.In the event that the article is chosen for publication by The Ship Science and Technology journal, the author state that he/she totally transfers reproduction rights of such to The Science and Technology for the Development of Naval, Maritime, and Riverine Industry Corporation, COTECMAR.The authors retain the copyright and transfer to COTECMAR the right of publication and reproduction of the work which will be simultaneously subject to the Creative Commons Attribution License (CC -BY) , which allows the license to copy, distribute, display and represent the work and to make derivative works as long as it recognizes and cites the work in the manner specified by the author or licensor.For more information about the Creative Commons Attribution License (CC -BY) and his use and scope, please visit the following web page https://creativecommons.org/licenses/by-sa/4.0/legalcode
url:https://shipjournal.co/index.php/sst/article/view/125
Catamaran
sea-keeping
propulsive qualities
CEHIPAR
advance resistance tests
hydrodynamics
en_US
During the last decade the civil and military applications of catamaran vessels have developed rapidly. Their particular area of proliferation is the short sea shipping where their power, economy, habitability and behavior have provided them a market niche. The rapid market growth ha caused catamarans to experience design modifications regarding size, speed, cargo diversity (passengers, vehicles, containers). The purpose of this article is to show the work developed by the El Pardo Hydrodynamic Experiences Channel (CEHIPAR) regarding the propulsive qualities of catamaran vessels. This work is the result of the need expressed by the Ministry of Defense for provision of technical assistance and scientific research for an I+D program that established more adequate program parameters for a catamaran-type vessel from the propulsive point of view, in relation to its size and shape, so that it has the adequate information and trustworthiness when suggesting a vessel of this type as an alternative to other platforms, always within the scope of application of patrol-type or quick-attack-type vessels.
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