【摘要】 分析粘弹性材料结构的振动,通常采用积分-微分形式的运动方程,有别于结构动力学中经常采用的 K—C—M形式的运动方程。因此分析者往往需要编制专用程序,从而增加成本,降低效率。建立了一组与积分-微分 形式等效的K—C—M形式的运动方程,使得粘弹性结构的动力学分析可以直接利用通用的FEM程序,而不必作任何 修改和扩充。更多还原

【Abstract】 Unlike the K-C-M form of motion equations used in common structural dynamic analysis with visco-damping ,integral-differential equations are usually used to describe the vibration of a visco-elastic structure .To avoid compiling special programs ,a set of standard K-C-M form equations of motion is provided and proved to be equivalent to the integral-differential vibration equations derived for visco-elastic structure. Thus the general commercial FEA programs can be utilized directly without any modification to solve the dynamic response of structures with visco-elastic elements.更多还原