A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a Seaway
This is the continuation of our research on development of a fully nonlinear, dynamically consistent, numerical ship motion model (DiSSEL). In this paper we report our results on modeling ship maneuvering in arbitrary seaway that is one of the most challenging and important problems in seakeeping. I...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2011/356741 |
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| author | Ray-Qing Lin Weijia Kuang |
| author_facet | Ray-Qing Lin Weijia Kuang |
| author_sort | Ray-Qing Lin |
| collection | DOAJ |
| description | This is the continuation of our research on development of a fully nonlinear, dynamically consistent, numerical ship motion model (DiSSEL). In this paper we report our results on modeling ship maneuvering in arbitrary seaway that is one of the most challenging and important problems in seakeeping. In our modeling, we developed an adaptive algorithm to maintain dynamical balances numerically as the encounter frequencies (the wave frequencies as measured on the ship) varying with the ship maneuvering state. The key of this new algorithm is to evaluate the encounter frequency variation differently in the physical domain and in the frequency domain, thus effectively eliminating possible numerical dynamical imbalances. We have tested this algorithm with several well-documented maneuvering experiments, and our results agree very well with experimental data. In particular, the numerical time series of roll and pitch motions and the numerical ship tracks (i.e., surge, sway, and yaw) are nearly identical to those of experiments. |
| format | Article |
| id | doaj-art-c1cc928d250d4fc3a6176cc1501f1fc2 |
| institution | Kabale University |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-c1cc928d250d4fc3a6176cc1501f1fc22025-02-03T01:27:26ZengWileyModelling and Simulation in Engineering1687-55911687-56052011-01-01201110.1155/2011/356741356741A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a SeawayRay-Qing Lin0Weijia Kuang1Hydromechanics Department, David Taylor Model Basin, NSWCCD, 9500 MacArthur Boulevard, West Bethesda, MD 20817-5700, USAPlanetary Geodynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USAThis is the continuation of our research on development of a fully nonlinear, dynamically consistent, numerical ship motion model (DiSSEL). In this paper we report our results on modeling ship maneuvering in arbitrary seaway that is one of the most challenging and important problems in seakeeping. In our modeling, we developed an adaptive algorithm to maintain dynamical balances numerically as the encounter frequencies (the wave frequencies as measured on the ship) varying with the ship maneuvering state. The key of this new algorithm is to evaluate the encounter frequency variation differently in the physical domain and in the frequency domain, thus effectively eliminating possible numerical dynamical imbalances. We have tested this algorithm with several well-documented maneuvering experiments, and our results agree very well with experimental data. In particular, the numerical time series of roll and pitch motions and the numerical ship tracks (i.e., surge, sway, and yaw) are nearly identical to those of experiments.http://dx.doi.org/10.1155/2011/356741 |
| spellingShingle | Ray-Qing Lin Weijia Kuang A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a Seaway Modelling and Simulation in Engineering |
| title | A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a Seaway |
| title_full | A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a Seaway |
| title_fullStr | A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a Seaway |
| title_full_unstemmed | A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a Seaway |
| title_short | A Fully Nonlinear, Dynamically Consistent Numerical Model for Ship Maneuvering in a Seaway |
| title_sort | fully nonlinear dynamically consistent numerical model for ship maneuvering in a seaway |
| url | http://dx.doi.org/10.1155/2011/356741 |
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