复合材料加筋板的动力分析

A DYNAMIC ANALYSIS OF STIFFENED COMPOSITE PLATES

摘要

摘要: 本文构造了九自由度三角形拟协调罚函数复合材料板单元与六自由度复合材料梁单元,考虑了剪切变形与转动惯量的影响。用这两种单元对复合材料加筋板的自由振动、阻尼特性和瞬态响应问题进行了研究,给出一些有益结果。

Abstract: In this papas two kinds of elements,triangular laminated plate element with nine degree of freedom based on multi-variable quasi-conforming and penalty element technigue and laminated beam element with six degree of freedom are presented.Effects of transverrse shear deformation and rotational inertia are considered in these two elements.Free vibration, damping charactristic and transient response of stiffened composite plate are investigated by using finite clemenl method.Results obtainod are. valuable for the designs of stiffened composite,plates.