弦单元及其在悬挂结构动力分析中的应用

Cord element and its application to dynamic analysis of suspended structures

为了合理地对工程中包含有悬挂系统的整体结构进行动力有限元分析， 根据有限单元法的基本原理推导了弦单元的刚度方程，求得了其等效横向 刚度矩阵；最后研究了自由悬挂系统的动力特性．

For making rational calculation of dynamic finite element to the whole structures that contain suspended system in engineering, based on the fundamental principle of finite element methods, stiffness equation and equivalent shearing stiffness matrix are derived. Finally, the dynamic property of the free suspended systems is studied.