Semi-submersible heave response study using diffraction potential theory with viscous damping correction
This paper discussesthe numerical prediction of the semisubmersible’s heave motion. In the previous study, it is observed that the heave motion response predicted by diffraction potential theory is over-estimated in the region where the heave motion is dominated by damping. In this research, viscous...
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International Society of Ocean, Mechanical and Aerospace Scientists and Engineers
2014
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my.utm.599352022-04-12T01:50:38Z http://eprints.utm.my/id/eprint/59935/ Semi-submersible heave response study using diffraction potential theory with viscous damping correction Sow, C. L. Koto, Jaswar Abyn, Hassan TJ Mechanical engineering and machinery This paper discussesthe numerical prediction of the semisubmersible’s heave motion. In the previous study, it is observed that the heave motion response predicted by diffraction potential theory is over-estimated in the region where the heave motion is dominated by damping. In this research, viscous damping is included in the calculation to increase the heave damping magnitude in motion equation. The wave force and added massof semi-submersible is predicted by diffraction potential theory, only the total damping is corrected by sum-up the linear damping from diffraction potential theory with the proposed viscous damping. The heave motion response obtained from the proposed numerical method also compared to the data from the experiment. From the comparison, it can conclude that involved of viscous damping in the calculation will corrected a part of heave motion response tendency and reduce the large over-predicted error of heave motion response at the damping dominate. International Society of Ocean, Mechanical and Aerospace Scientists and Engineers 2014-03-20 Article PeerReviewed Sow, C. L. and Koto, Jaswar and Abyn, Hassan (2014) Semi-submersible heave response study using diffraction potential theory with viscous damping correction. Journal of Ocean, Mechanical and Aerospace -Science and Engineering-, 5 . pp. 23-29. ISSN 2354-7065 https://jomase.ejournal.unri.ac.id/index.php/JOMASE/article/view/4228 |
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TJ Mechanical engineering and machinery Sow, C. L. Koto, Jaswar Abyn, Hassan Semi-submersible heave response study using diffraction potential theory with viscous damping correction |
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This paper discussesthe numerical prediction of the semisubmersible’s heave motion. In the previous study, it is observed that the heave motion response predicted by diffraction potential theory is over-estimated in the region where the heave motion is dominated by damping. In this research, viscous damping is included in the calculation to increase the heave damping magnitude in motion equation. The wave force and added massof semi-submersible is predicted by diffraction potential theory, only the total damping is corrected by sum-up the linear damping from diffraction potential theory with the proposed viscous damping. The heave motion response obtained from the proposed numerical method also compared to the data from the experiment. From the comparison, it can conclude that involved of viscous damping in the calculation will corrected a part of heave motion response tendency and reduce the large over-predicted error of heave motion response at the damping dominate. |
| format |
Article |
| author |
Sow, C. L. Koto, Jaswar Abyn, Hassan |
| author_facet |
Sow, C. L. Koto, Jaswar Abyn, Hassan |
| author_sort |
Sow, C. L. |
| title |
Semi-submersible heave response study using diffraction potential theory with viscous damping correction |
| title_short |
Semi-submersible heave response study using diffraction potential theory with viscous damping correction |
| title_full |
Semi-submersible heave response study using diffraction potential theory with viscous damping correction |
| title_fullStr |
Semi-submersible heave response study using diffraction potential theory with viscous damping correction |
| title_full_unstemmed |
Semi-submersible heave response study using diffraction potential theory with viscous damping correction |
| title_sort |
semi-submersible heave response study using diffraction potential theory with viscous damping correction |
| publisher |
International Society of Ocean, Mechanical and Aerospace Scientists and Engineers |
| publishDate |
2014 |
| url |
http://eprints.utm.my/id/eprint/59935/ https://jomase.ejournal.unri.ac.id/index.php/JOMASE/article/view/4228 |
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1731225594561036288 |
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13.251813 |