用于壳体自由振动分析的广义协调元  

Generalized Conforming Shell Element for Analysis of Free Vibration of Shell Structures

作　　者：钱振华[1] 黄修长[1] 华宏星[1] 

机构地区：[1]上海交通大学机械系统和振动国家重点实验室,上海200240

出　　处：《噪声与振动控制》2011年第1期9-14,共6页Noise and Vibration Control

摘　　要：采用基于解析试函数的广义协调四边形膜单元和中厚板单元构造了平板型4节点壳体单元,并将其用于壳体振动分析。该壳体单元具有列式简单,易于编程的优点。通过数值算例表明,该单元计算精度比较高。A flat 4-node shell element is developed by using membrane and plate generalized conforming element based on the analytical trial function.The element has 24 degrees of freedom and has been used for vibration analysis of cylindrical structures.Numerical tests show that the element has the advantage of easy-programming and high accuracy.

关 键 词：振动与波 广义协调元 解析试函数 壳体单元 FEAST Gmsh 

分 类 号：O32[理学—一般力学与力学基础]