粘弹阻尼结构动态性能的有限元分析

考虑到阻尼材料的频率依赖性，提出了一种研究粘弹阻尼结构动态力学性能的迭代有限元模拟分析方法。用这种迭代算法计算了几种典型阻尼结构 悬臂梁和压筋板的模态参数，计算结果与试验模态分析结果或理论解析计算的结果基本一致。此外，还探讨了有限元模拟单元的类型对计算结果的影响。

Finite Element Analysis on Dynamic Properties of Viscoelastically Damped Structures

In this paper,a finite element analysis(FEA) method, in which the frequency dependence of damping materials was considered, was suggested for investigating the dynamic properties of damped structures containing a viscoelastic layer. The modal parameters of some typical structures, such as cantilever beam, stiffened plate were calculated with the iteration method. The FEA result was almost the same as that of the modal test or the exact analytical solution. The effect of FEA element types on the FEA based calculated results was also investigated.