摘要
基于实模态理论和相应特征值计算方法,本文在位形空间中用摄动方法求解非对称系统的复特征值和复模态。为提高精度,增加了一个迭代格式。最后给出算例并讨论了计算精度和收敛性。
In this paper, based on real mode theory associated with eigenvalue algorithm. an efficient perturbation method has been developed to obtain the complex eigen-solutions for nonsymmetrical system in configuration space. In order to improve the accuracy of the numerical results, an iterative scheme is presented The accuracy and convergence are illustrated by two numerical examples.
出处
《应用力学学报》
CAS
CSCD
北大核心
1990年第2期71-82,144,共12页
Chinese Journal of Applied Mechanics
关键词
振动
复模态
摄动法
系统
模态
real mode, complex mode, perturbation method, configuration space.
