| Asymptotic Calculation of the Wave Trough Exceedance Probabilities in A Nonlinear Sea |
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| 作者姓名： | WANG Ying-guang |
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| 作者单位： | State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE), Shanghai 200240, China;School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| 基金项目： | This research work was financially supported by the funding of an independent research project from the Chinese State Key Laboratory of Ocean Engineering (Grant No. GKZD010038). |
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| 摘 要： | This paper concerns the calculation of the wave trough exceedance probabilities in a nonlinear sea. The calculations have been carried out by incorporating a second order nonlinear wave model into an asymptotic method. This is a new approach for the calculation of the wave trough exceedance probabilities, and, as all of the calculations are performed in the probability domain, avoids the need for long time-domain simulations. The proposed asymptotic method has been applied to calculate the wave trough depth exceedance probabilities of a sea state with the surface elevation data measured at the coast of Yura in the Japan Sea. It is demonstrated that the proposed new method can offer better predictions than the theoretical Rayleigh wave trough depth distribution model. The calculated results by using the proposed new method have been further compared with those obtained by using the Arhan and Plaisted nonlinear distribution model and the Toffoli et al.’s wave trough depth distribution model, and its accuracy has been once again substantiated. The research findings obtained from this study demonstrate that the proposed asymptotic method can be readily utilized in the process of designing various kinds of ocean engineering structures.
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| 关 键 词： | wave trough depth second order nonlinear wave model asymptotic method measured data |
| 收稿时间： | 2017/8/23 0:00:00 |
| 修稿时间： | 2017/12/10 0:00:00 |
Asymptotic Calculation of the Wave Trough Exceedance Probabilities in A Nonlinear Sea |
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| WANG Ying-guang.Asymptotic Calculation of the Wave Trough Exceedance Probabilities in A Nonlinear Sea[J].Ocean Engineering,2018,32(2):189-195. |
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| Authors: | WANG Ying-guang |
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| Institution: | State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE), Shanghai 200240, China;School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | |
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| Keywords: | wave trough depth second order nonlinear wave model asymptotic method measured data |
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