Ship Structural Design by means of Design Irregular Wave

本文提出了一种估算船舶轰击状态下最大局部应力的方法。计算过程分为四个层次；设计短期海况和设计不规则波的定义，作为柔性梁的船舶在猛烈撞击状态下的非线性运动和畸变估计，非线性压力分布估计，以及整个船舶结构的应力分析。从船舶结构设计的角度论证了该方法的有效性。

A methodology to estimate the maximum local stress of a ship in slamming condition was proposed in this research. The calculation procedure consists of four levels ; the definition of the design short-term sea state and the design irregular wave, the estimation of nonlinear ship motion and distortion as a flexible beam in slamming condition, the estimation of nonlinear pressure distribution, and the stress analysis of the entire ship structure. The validity of the method was clarified from the viewpoint of ship structural design.