Fatigue damage assessment of container ships concerning wave-induced torsion
The traditional method to assess fatigue damage of ship structures assumes moderate wave amplitudes and linear responses. This method can be questioned when applied on container ships that are characterized by large deck openings, because the low torsion rigidity of this type of ship makes it sensit...
Published in: | 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 2 |
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Online Access: | https://doi.org/10.1115/OMAE2010-20140 https://research.chalmers.se/en/publication/122544 |
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ftchalmersuniv:oai:research.chalmers.se:122544 2023-05-15T17:32:30+02:00 Fatigue damage assessment of container ships concerning wave-induced torsion Li, Zhiyuan Ringsberg, Jonas Mao, Wengang 2010 text https://doi.org/10.1115/OMAE2010-20140 https://research.chalmers.se/en/publication/122544 unknown http://dx.doi.org/10.1115/OMAE2010-20140 https://research.chalmers.se/en/publication/122544 Mechanical Engineering Vehicle Engineering Container ship non-linear wave loads torsion fatigue direct calculation 2010 ftchalmersuniv https://doi.org/10.1115/OMAE2010-20140 2022-12-11T07:08:13Z The traditional method to assess fatigue damage of ship structures assumes moderate wave amplitudes and linear responses. This method can be questioned when applied on container ships that are characterized by large deck openings, because the low torsion rigidity of this type of ship makes it sensitive to oblique waves. In this paper, the 3D hydrodynamic code WASIM is used to simulate a 4400 TEU container ship operating in the North Atlantic Ocean. Nonlinear wave loads are utilized for direct calculation of the stress histories under severe sea states. The warping stress from wave-induced torsion is separated from the stress components from vertical and horizontal bending. The contribution to fatigue damage accumulation from warping stresses is evaluated. For comparison, the results from the numerical simulations and fatigue calculations are verified with full-scale measurements made on a similar type of container vessel. Other/Unknown Material North Atlantic Chalmers University of Technology: Chalmers research 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 2 151 158 |
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Chalmers University of Technology: Chalmers research |
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ftchalmersuniv |
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unknown |
topic |
Mechanical Engineering Vehicle Engineering Container ship non-linear wave loads torsion fatigue direct calculation |
spellingShingle |
Mechanical Engineering Vehicle Engineering Container ship non-linear wave loads torsion fatigue direct calculation Li, Zhiyuan Ringsberg, Jonas Mao, Wengang Fatigue damage assessment of container ships concerning wave-induced torsion |
topic_facet |
Mechanical Engineering Vehicle Engineering Container ship non-linear wave loads torsion fatigue direct calculation |
description |
The traditional method to assess fatigue damage of ship structures assumes moderate wave amplitudes and linear responses. This method can be questioned when applied on container ships that are characterized by large deck openings, because the low torsion rigidity of this type of ship makes it sensitive to oblique waves. In this paper, the 3D hydrodynamic code WASIM is used to simulate a 4400 TEU container ship operating in the North Atlantic Ocean. Nonlinear wave loads are utilized for direct calculation of the stress histories under severe sea states. The warping stress from wave-induced torsion is separated from the stress components from vertical and horizontal bending. The contribution to fatigue damage accumulation from warping stresses is evaluated. For comparison, the results from the numerical simulations and fatigue calculations are verified with full-scale measurements made on a similar type of container vessel. |
author |
Li, Zhiyuan Ringsberg, Jonas Mao, Wengang |
author_facet |
Li, Zhiyuan Ringsberg, Jonas Mao, Wengang |
author_sort |
Li, Zhiyuan |
title |
Fatigue damage assessment of container ships concerning wave-induced torsion |
title_short |
Fatigue damage assessment of container ships concerning wave-induced torsion |
title_full |
Fatigue damage assessment of container ships concerning wave-induced torsion |
title_fullStr |
Fatigue damage assessment of container ships concerning wave-induced torsion |
title_full_unstemmed |
Fatigue damage assessment of container ships concerning wave-induced torsion |
title_sort |
fatigue damage assessment of container ships concerning wave-induced torsion |
publishDate |
2010 |
url |
https://doi.org/10.1115/OMAE2010-20140 https://research.chalmers.se/en/publication/122544 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://dx.doi.org/10.1115/OMAE2010-20140 https://research.chalmers.se/en/publication/122544 |
op_doi |
https://doi.org/10.1115/OMAE2010-20140 |
container_title |
29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 2 |
container_start_page |
151 |
op_container_end_page |
158 |
_version_ |
1766130659135324160 |