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目前有关畸形波的研究多集中于畸形波的形成机理及实验和数值模拟方法,而畸形波与海洋结构物相互作用的研究相比之下仍显不足。现有的畸形波-结构物相互作用研究多采用数值方法,且多将结构物视为刚体。鉴于板材是海洋结构物的基本组成结构,本文数值研究垂直弹性平板在畸形波砰击作用下的动力响应。在基于N-S方程的二维数值波浪水槽中模拟日本海域的实测畸形波。采用一种满足质量守恒方程的数值消波方法有效消除畸形波。在计算平板动力响应的同时分析了结构弹性对流场砰击压力的影响。研究发现平板的固有周期对动力响应有重要影响。
At present, the research on deformity wave mostly focuses on the formation mechanism and experimental and numerical simulation of deformable wave, while the research on the interaction between deformable wave and ocean structure is still inadequate. The existing deformity wave-structure interaction studies mostly use numerical methods, and more of the structure as a rigid body. In view of the plate is the basic structure of the marine structure, this paper numerically studies the dynamic response of the vertical elastic plate under the normal wave slamming. In the two-dimensional numerical wave tank based on the N-S equation simulates the measured geomagnetic wave in Japan. A numerical wave cancellation method which satisfies the mass conservation equation is adopted to eliminate the freak waves effectively. The effect of structural elasticity on slamming pressure is also analyzed in the calculation of the dynamic response of slab. The study found that the natural period of the plate has a significant effect on the dynamic response.