浸没的圆柱壳在冲击波作用下动响应的Galerkin解法  

Galerkin Approach of the Dynamic Response of a Submerged Cylindrical Shell Subjected to Shock Wave

作　　者：刘忠族[1] 钟伟芳[1] 黄玉盈[1] 

机构地区：[1]华中理工大学力学系

出　　处：《振动工程学报》1998年第1期91-95,共5页Journal of Vibration Engineering

基　　金：中国船舶工业总公司应用基础研究资助项目

摘　　要：研究了无粘、无旋和不可压缩流体中两端简支圆柱壳在给定冲击波作用下的动响应。圆柱壳的运动方程中考虑了流体动压力和冲击波压力的共同作用，通过将冲击波压力分布函数表示为Ｆｏｕｒｉｅｒ级数有限项形式，并利用Ｇａｌｅｒｋｉｎ方法对耦合方程进行数值求解。The dynamic response of a simply supported cylindrical shell,submerged in an inviscid,irrotational,incompressible fluid and subjected to shock waves,is investigated.Effects of shock wave pressure and hydrodynamic force are considered in equations of shell motion. By expanding the given distribution function of shock wave pressure into finite terms of Fourier series and using Galerkin method,the coupled equations of the fluid structure interaction problem can be solved numerically.The displacement response of the shell are given.

关 键 词：圆柱面壳 冲击波响应 流固耦合 伽辽金法 

分 类 号：O352[理学—流体力学]