船体结构的线性水弹性分析

A Linear Hydroelastic Analysis of Ship Hull Structure

讨论了近年来水弹性理论的典型模型 ,给出了三维水弹性分析的通用公式 ,并详细讨论了流固耦合的物面条件及其简化形式 ,分析了典型高速船的水弹性与准静态响应元间的差异。除较长船和较低海况外 ,一般可以忽略水弹性效应。在高海况时 ,水弹性会使响应特征值略微减小 ,准静态法结果偏于保守。

Discusses a typical ship hydroelasticity theory model in recent years. A general three dimensional hydroelasticity formulation is presented. The coupled fluid solid body boundary conditions and its simplified form are also discussed. Analyses the differences between hydroelasticity and quasi static response of the typical high speed vessels. The hydroelastic effect can be negligible in most cases except for the longer ships and the lower sea state. In the higher sea states, most characteristic values are reduced slightly due to the hydroelasticity and the quais static results are a little bit conservative.