含环向浅槽缺陷的复合材料圆柱壳非线性动力响应  

The Nonlinear Dynamic Response of Composite Cylindrical Shell with Circumferential Shallow Groove

作　　者：王天霖[1] 唐文勇[1] 张圣坤[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200030

出　　处：《上海交通大学学报》2006年第6期1046-1049,共4页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金资助项目(10202013)

摘　　要：基于一阶剪切变形理论,由Hamilton原理推导出包含横向剪切变形和初始几何缺陷的圆柱壳非线性动力方程.以初始几何缺陷的方式描述复合材料圆柱壳上的环向浅槽,并引入方程采用半解析法求解.结果表明,环向浅槽缺陷对复合材料圆柱壳的非线性动力响应影响很大.Based on the first order shear deformation theory （FSDT）, the nonlinear dynamic equations involving transverse shear deformation and initial geometric imperfections were obtained by Hamilton＇s philosophy. The circumferential shallow groove of the laminated composite cylindrical shell is treated as the initial geometric imperfection in the dynamic equations, which are solved by the semi-analytical method. The results show that there is a great influence of circumferential shallow groove on the nonlinear dynamical responses.

关 键 词：复合材料 圆柱壳 动力响应 半解析法 浅槽 

分 类 号：TV312[水利工程—水工结构工程]