摘要
在粘弹性阻尼结构的振动特征值问题摄动分析中,要计算结构各阶特征矢量对阻尼层剪切模量实部G_R的导数。本文在前人的基础上,进一步完善了其计算方法。以此为基础编制了一个计算粘弹性结构特征值和特征矢量的程序。它适用于有重特征值的任意情形,且对于规模较大的问题,能同时节省存贮量和计算机时。
In the perturbation analysis of vibration eigenvalue problem of visco-elastic damping structures, the derivatives of the eigenvectors or any order to the real part of the shear odulus or the damping core must be calculated. In this paper, the cakulation method has been improved and a program is formed. It can be used in the case or having multiple eigenvalues. Furthermore, it can save storage capacity and computation time for larger-problems.
