Slamming Simulations in a Conditional Wave
A study of slamming events in conditional waves is presented in this paper. The ship is sailing in head sea and the motion is solved for under the assumption of rigid body motion constrained to two degree-of-freedom i.e. heave and pitch. Based on a time domain non-linear strip theory most probable c...
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The American Society of Mechanical Engineers (ASME)
2012
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ftdtupubl:oai:pure.atira.dk:publications/23326ff1-a7a7-4bda-90ab-fdd63f1e953f 2024-09-15T17:50:18+00:00 Slamming Simulations in a Conditional Wave Seng, Sopheak Jensen, Jørgen Juncher 2012 https://orbit.dtu.dk/en/publications/23326ff1-a7a7-4bda-90ab-fdd63f1e953f eng eng The American Society of Mechanical Engineers (ASME) https://orbit.dtu.dk/en/publications/23326ff1-a7a7-4bda-90ab-fdd63f1e953f info:eu-repo/semantics/closedAccess Seng , S & Jensen , J J 2012 , Slamming Simulations in a Conditional Wave . in Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering . The American Society of Mechanical Engineers (ASME) , pp. Paper OMAE2012-83310 , 31st ASME International Conference on Ocean, Offshore and Arctic Engineering , Rio de Janeiro , Brazil , 01/07/2012 . contributionToPeriodical 2012 ftdtupubl 2024-07-22T23:50:05Z A study of slamming events in conditional waves is presented in this paper. The ship is sailing in head sea and the motion is solved for under the assumption of rigid body motion constrained to two degree-of-freedom i.e. heave and pitch. Based on a time domain non-linear strip theory most probable conditional waves are generated to induce short term extreme responses of 4500 MNm sagging and hogging vertical bending moment (VBM) amidships on a modern 9,400-TEU post-Panamax container ship and 3000 MNm (sag) on a Panamax container ship. The results of the strip theory are compared to the results of free surface NS/VOF CFD simulations under the same wave conditions. In moderate seas and no occurrence of slamming the structural responses predicted by the methods agree well. When slamming occurs the strip theory overpredicts VBM but the peak values of VBM occurs at approximately the same time as predicted by the CFD method implying the possibility to use the more accurate CFD results to improve the estimation of slamming loads in the strip theory through a rational correction coefficient. Article in Journal/Newspaper Arctic Technical University of Denmark: DTU Orbit |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
A study of slamming events in conditional waves is presented in this paper. The ship is sailing in head sea and the motion is solved for under the assumption of rigid body motion constrained to two degree-of-freedom i.e. heave and pitch. Based on a time domain non-linear strip theory most probable conditional waves are generated to induce short term extreme responses of 4500 MNm sagging and hogging vertical bending moment (VBM) amidships on a modern 9,400-TEU post-Panamax container ship and 3000 MNm (sag) on a Panamax container ship. The results of the strip theory are compared to the results of free surface NS/VOF CFD simulations under the same wave conditions. In moderate seas and no occurrence of slamming the structural responses predicted by the methods agree well. When slamming occurs the strip theory overpredicts VBM but the peak values of VBM occurs at approximately the same time as predicted by the CFD method implying the possibility to use the more accurate CFD results to improve the estimation of slamming loads in the strip theory through a rational correction coefficient. |
format |
Article in Journal/Newspaper |
author |
Seng, Sopheak Jensen, Jørgen Juncher |
spellingShingle |
Seng, Sopheak Jensen, Jørgen Juncher Slamming Simulations in a Conditional Wave |
author_facet |
Seng, Sopheak Jensen, Jørgen Juncher |
author_sort |
Seng, Sopheak |
title |
Slamming Simulations in a Conditional Wave |
title_short |
Slamming Simulations in a Conditional Wave |
title_full |
Slamming Simulations in a Conditional Wave |
title_fullStr |
Slamming Simulations in a Conditional Wave |
title_full_unstemmed |
Slamming Simulations in a Conditional Wave |
title_sort |
slamming simulations in a conditional wave |
publisher |
The American Society of Mechanical Engineers (ASME) |
publishDate |
2012 |
url |
https://orbit.dtu.dk/en/publications/23326ff1-a7a7-4bda-90ab-fdd63f1e953f |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Seng , S & Jensen , J J 2012 , Slamming Simulations in a Conditional Wave . in Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering . The American Society of Mechanical Engineers (ASME) , pp. Paper OMAE2012-83310 , 31st ASME International Conference on Ocean, Offshore and Arctic Engineering , Rio de Janeiro , Brazil , 01/07/2012 . |
op_relation |
https://orbit.dtu.dk/en/publications/23326ff1-a7a7-4bda-90ab-fdd63f1e953f |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1810292147324190720 |