Effects of Vertical Motions on Roll of Planing Hulls
Roll motion of a planing hull can be easily triggered at high speeds, causing a significant change in hydrodynamic pressure pattern, which can threaten the stability of the vessel. Modeling and investigating roll motion of a planing vessel may require a strong coupling between motions in vertical an...
Published in: | Journal of Offshore Mechanics and Arctic Engineering |
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Online Access: | https://hdl.handle.net/11588/942009 https://doi.org/10.1115/1.4050210 |
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ftunivnapoliiris:oai:www.iris.unina.it:11588/942009 2024-09-09T19:14:47+00:00 Effects of Vertical Motions on Roll of Planing Hulls Tavakoli S Dashtimanesh A Mancini S Mehr J A Milanesi S Tavakoli, S Dashtimanesh, A Mancini, S Mehr, J A Milanesi, S 2021 https://hdl.handle.net/11588/942009 https://doi.org/10.1115/1.4050210 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000723104800005 volume:143 issue:4 numberofpages:10 journal:JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME https://hdl.handle.net/11588/942009 doi:10.1115/1.4050210 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85107526805 https://doi.org/10.1115/1.4050210 info:eu-repo/semantics/closedAccess fluid–structure interaction risers and moorings and cable dynamic ship motion hydrodynamics info:eu-repo/semantics/article 2021 ftunivnapoliiris https://doi.org/10.1115/1.4050210 2024-06-17T15:19:36Z Roll motion of a planing hull can be easily triggered at high speeds, causing a significant change in hydrodynamic pressure pattern, which can threaten the stability of the vessel. Modeling and investigating roll motion of a planing vessel may require a strong coupling between motions in vertical and transverse planes. In the present paper, we have used a mathematical model to analyze the roll of a planing hull by coupling surge, heave, pitch, and roll motions using 2D + T theory to study the effects of roll-induced vertical motions on roll coefficients and response. Mathematically computed forces and moments as well as roll dynamic response of the vessel are seen to be in fair quantitative agreement with experimentally measured values of previously published data. Using the 2D + T method, it has been shown that to model the roll of a planing hull at high speeds, we need to consider the effects of heave, pitch, and surge motions. Through our mathematical modeling, it is found that freedom in vertical motions increases time-dependent roll damping and added mass coefficients, especially at early planing speeds. The results of dynamic response simulations suggest that freedom in the vertical plane can decrease the roll response. Article in Journal/Newspaper Arctic IRIS Università degli Studi di Napoli Federico II Journal of Offshore Mechanics and Arctic Engineering 143 4 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Napoli Federico II |
op_collection_id |
ftunivnapoliiris |
language |
English |
topic |
fluid–structure interaction risers and moorings and cable dynamic ship motion hydrodynamics |
spellingShingle |
fluid–structure interaction risers and moorings and cable dynamic ship motion hydrodynamics Tavakoli S Dashtimanesh A Mancini S Mehr J A Milanesi S Effects of Vertical Motions on Roll of Planing Hulls |
topic_facet |
fluid–structure interaction risers and moorings and cable dynamic ship motion hydrodynamics |
description |
Roll motion of a planing hull can be easily triggered at high speeds, causing a significant change in hydrodynamic pressure pattern, which can threaten the stability of the vessel. Modeling and investigating roll motion of a planing vessel may require a strong coupling between motions in vertical and transverse planes. In the present paper, we have used a mathematical model to analyze the roll of a planing hull by coupling surge, heave, pitch, and roll motions using 2D + T theory to study the effects of roll-induced vertical motions on roll coefficients and response. Mathematically computed forces and moments as well as roll dynamic response of the vessel are seen to be in fair quantitative agreement with experimentally measured values of previously published data. Using the 2D + T method, it has been shown that to model the roll of a planing hull at high speeds, we need to consider the effects of heave, pitch, and surge motions. Through our mathematical modeling, it is found that freedom in vertical motions increases time-dependent roll damping and added mass coefficients, especially at early planing speeds. The results of dynamic response simulations suggest that freedom in the vertical plane can decrease the roll response. |
author2 |
Tavakoli, S Dashtimanesh, A Mancini, S Mehr, J A Milanesi, S |
format |
Article in Journal/Newspaper |
author |
Tavakoli S Dashtimanesh A Mancini S Mehr J A Milanesi S |
author_facet |
Tavakoli S Dashtimanesh A Mancini S Mehr J A Milanesi S |
author_sort |
Tavakoli S |
title |
Effects of Vertical Motions on Roll of Planing Hulls |
title_short |
Effects of Vertical Motions on Roll of Planing Hulls |
title_full |
Effects of Vertical Motions on Roll of Planing Hulls |
title_fullStr |
Effects of Vertical Motions on Roll of Planing Hulls |
title_full_unstemmed |
Effects of Vertical Motions on Roll of Planing Hulls |
title_sort |
effects of vertical motions on roll of planing hulls |
publishDate |
2021 |
url |
https://hdl.handle.net/11588/942009 https://doi.org/10.1115/1.4050210 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000723104800005 volume:143 issue:4 numberofpages:10 journal:JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME https://hdl.handle.net/11588/942009 doi:10.1115/1.4050210 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85107526805 https://doi.org/10.1115/1.4050210 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1115/1.4050210 |
container_title |
Journal of Offshore Mechanics and Arctic Engineering |
container_volume |
143 |
container_issue |
4 |
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1809755002726514688 |