复合材料圆柱壳非线性热弹耦合振动

NONLINEAR THERMOELASTICALLY COUPLED VIBRATION OF COMPOSITE MATERIALS CYLINDRIC SHELLS

根据复合材料圆柱壳的非线性动力方程 ,研究了复合材料圆柱壳的非线性热耦合振动 ,应用Galerlein原理及改进的L -P法对其非线性热耦合振动进行求解 ,并讨论分析了温度、长径比、厚径比对复合材料圆柱壳非线性热振动固有频率的影响。

In terms of nonlinear dynamics equation of composite materials cylindric shells under thermal state,nonlinear thermoelastieally coupled vibration of composite materials cylindric shells is studied and its solution is given by Galerkin principle and improved L_P method.The effects of temperature,ratio of length to radius and ratio of thickness to radius on thermal vibration frequency of composite materials cylindric shells are discussed.