悬臂正交各向异性圆柱壳的自由振动分析  

Free vibration of cantilever orthotropic circular cylindrical shell

作　　者：李学斌[1] 

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430064

出　　处：《舰船科学技术》2008年第1期41-44,共4页Ship Science and Technology

摘　　要：圆柱壳是潜艇、化工容器以及宇航结构中的主要形式,它的动态特性一直得到了广泛的研究。基于分离变量法和Fl櫣gge经典壳体理论,分析了正交各向异性圆柱壳在悬臂边界条件下的自由振动问题。给出了精确解的形式,得到了自由振动频率和振型的变化曲线。分析了材料特性和几何参数对频率的影响。数值算例结果表明,本文的方法具有较高的精度。Shell structures are widely used in submarine,aerospace craft and other mechanical engineering complex structures. They have been studied by researchers for many years. A general analysis method is presented for evaluating the free vibration characteristics of cantilever orthotropic circular cylindrical shells. The solution is based on Fliigge＇s classic shell theory. Numerical results are compared with those obtained by other researchers. The effects of shell＇s and materials＇ parameters on frequency are studied.

关 键 词：正交各向异性圆柱壳 悬臂边界条件 自由振动 

分 类 号：U661.4[交通运输工程—船舶及航道工程] U663[交通运输工程—船舶与海洋工程]