Based on the generalized mode theory of linear vibrating defective systems, an identification method of generalized modal parameters is presented in this paper.
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。
A novel recursive subspace method is developed based on fixed length moving window (FLMW) projection approximation used for estimating the modal parameter of linear time-varying structural system.
给出了一个新的用于线性时变参数结构系统模态参数识别的基于固定长度平移窗投影估计的递推子空间方法。
This method can deal with dynamic response of not only elastic modal structure but also rigid modal structure. Furthermore, high accuracy is produced under both linear and nonlinear excitations.
该方法不仅可以处理弹性模态结构的动力响应而且可以处理刚体模态结构的动力响应，并且不论是线性激励还是非线性激励，本文提出的计算格式都给出了很高的精度。
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