摘要
基于线性振动亏损系统的广义模态理论,本文提出了一种识别亏损系统广义模态参数的频域方法。该方法将直接法与迭代法相结合,无需人工初值,可分步识别出亏损系统的全部广义模态参数。模拟识别结果表明,本文方法是有效且可行的。
Based on the generalized mode theory of linear vibrating defective systems, an identification method of generalized modal parameters is presented in this paper. By use of the method, which combining the direct method with iteration method in frequency dominion, all the generalized modal parameters can be ideatified without any initial value. It is shown that the present method is effective and useful.
出处
《固体力学学报》
CAS
CSCD
北大核心
1991年第3期235-243,共9页
Chinese Journal of Solid Mechanics
关键词
亏损系统
广义模态
参数识别方法
defective system, generalized mode, parameter identification method
