中文摘要：

为了分析随机波浪作用下船舶与海洋平台碰撞的外部动力学问题,采用非线性有限元法建立其三维有限元模型,通过DYNA计算获得碰撞力的时序结果.在此基础上结合外部动力学原理,将碰撞力作为外载荷,同时考虑风、浪、流的联合作用,采用时域耦合方法应用水动力软件AQWA对半潜式海洋平台进行水动力性能数值计算.

英文摘要：

In order to explore the external dynamic mechanism of the collision between ship and offshore platform under the random wave,non-linear finite element method was used to establish the three-dimensional finite element model of semi-submersible platform and supply ship stern. The sequential results of collision force were obtained by DYNA. And on the basis,the hydrodynamic performance of the semi-submersible platform was obtained by AQWA under the collision force,flow,wind and waves.