ROLL DAMPING COEFFICIENTS ASSESSMENT AND COMPARISON FOR ROUND BILGE AND HARD CHINE HULLFORMS
This work is focused on determination of roll damping of warped hull form at low relative speed for which little data are available. The effect of hard chine and round bilge on roll damping has been investigated for two models of same characteristics and same inertial properties in displacement and...
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Ocean, Offshore and Arctic Engineering Division of ASME
2013
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ftunivnapoliiris:oai:www.iris.unina.it:11588/563834 2024-04-14T08:05:16+00:00 ROLL DAMPING COEFFICIENTS ASSESSMENT AND COMPARISON FOR ROUND BILGE AND HARD CHINE HULLFORMS BEGOVIC, ERMINA BERTORELLO, CARLO FRANCESCO MARIO J. Prpic Orsic Ocean, Offshore and Arctic Engineering (OMAE 2013) ASME 2013 Begovic, Ermina Bertorello, CARLO FRANCESCO MARIO J., Prpic Orsic 2013 http://hdl.handle.net/11588/563834 eng eng Ocean, Offshore and Arctic Engineering Division of ASME country:USA place:Houston, Texas, USA info:eu-repo/semantics/altIdentifier/wos/WOS:000360869500024 ispartofbook:Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering OMAE2013 Professor Odd Faltinsen Honoring Symposium on Marine Hydrodynamics volume:1 firstpage:1 lastpage:8 numberofpages:8 alleditors:ASME 2013 http://hdl.handle.net/11588/563834 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84893095789 roll damping hard chine versus round bilge hull info:eu-repo/semantics/conferencePaper 2013 ftunivnapoliiris 2024-03-21T19:18:39Z This work is focused on determination of roll damping of warped hull form at low relative speed for which little data are available. The effect of hard chine and round bilge on roll damping has been investigated for two models of same characteristics and same inertial properties in displacement and semi-displacement regime. It was expected to experience the difference between two forms in nonlinear roll damping only, which is amplitude dependent and therefore roll decay tests were performed for angles from 10 to 30 degrees at zero speed up to Fn = 0.48. Roll decays have been analyzed considering logarithmic and linear decrements. Obtained results are natural roll frequencies and periods, equivalent linear damping αEQ and linear α and quadratic β damping coefficients as functions of ship speed. Conference Object Arctic IRIS Università degli Studi di Napoli Federico II |
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Open Polar |
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IRIS Università degli Studi di Napoli Federico II |
op_collection_id |
ftunivnapoliiris |
language |
English |
topic |
roll damping hard chine versus round bilge hull |
spellingShingle |
roll damping hard chine versus round bilge hull BEGOVIC, ERMINA BERTORELLO, CARLO FRANCESCO MARIO J. Prpic Orsic ROLL DAMPING COEFFICIENTS ASSESSMENT AND COMPARISON FOR ROUND BILGE AND HARD CHINE HULLFORMS |
topic_facet |
roll damping hard chine versus round bilge hull |
description |
This work is focused on determination of roll damping of warped hull form at low relative speed for which little data are available. The effect of hard chine and round bilge on roll damping has been investigated for two models of same characteristics and same inertial properties in displacement and semi-displacement regime. It was expected to experience the difference between two forms in nonlinear roll damping only, which is amplitude dependent and therefore roll decay tests were performed for angles from 10 to 30 degrees at zero speed up to Fn = 0.48. Roll decays have been analyzed considering logarithmic and linear decrements. Obtained results are natural roll frequencies and periods, equivalent linear damping αEQ and linear α and quadratic β damping coefficients as functions of ship speed. |
author2 |
Ocean, Offshore and Arctic Engineering (OMAE 2013) ASME 2013 Begovic, Ermina Bertorello, CARLO FRANCESCO MARIO J., Prpic Orsic |
format |
Conference Object |
author |
BEGOVIC, ERMINA BERTORELLO, CARLO FRANCESCO MARIO J. Prpic Orsic |
author_facet |
BEGOVIC, ERMINA BERTORELLO, CARLO FRANCESCO MARIO J. Prpic Orsic |
author_sort |
BEGOVIC, ERMINA |
title |
ROLL DAMPING COEFFICIENTS ASSESSMENT AND COMPARISON FOR ROUND BILGE AND HARD CHINE HULLFORMS |
title_short |
ROLL DAMPING COEFFICIENTS ASSESSMENT AND COMPARISON FOR ROUND BILGE AND HARD CHINE HULLFORMS |
title_full |
ROLL DAMPING COEFFICIENTS ASSESSMENT AND COMPARISON FOR ROUND BILGE AND HARD CHINE HULLFORMS |
title_fullStr |
ROLL DAMPING COEFFICIENTS ASSESSMENT AND COMPARISON FOR ROUND BILGE AND HARD CHINE HULLFORMS |
title_full_unstemmed |
ROLL DAMPING COEFFICIENTS ASSESSMENT AND COMPARISON FOR ROUND BILGE AND HARD CHINE HULLFORMS |
title_sort |
roll damping coefficients assessment and comparison for round bilge and hard chine hullforms |
publisher |
Ocean, Offshore and Arctic Engineering Division of ASME |
publishDate |
2013 |
url |
http://hdl.handle.net/11588/563834 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000360869500024 ispartofbook:Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering OMAE2013 Professor Odd Faltinsen Honoring Symposium on Marine Hydrodynamics volume:1 firstpage:1 lastpage:8 numberofpages:8 alleditors:ASME 2013 http://hdl.handle.net/11588/563834 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84893095789 |
_version_ |
1796302055157006336 |