特征矢量的正交性是用模态方法求解多体系统动力响应的前提条件。
In multibody system dynamics, the orthogonality of eigenvector is the precondition to solve the dynamic response of system using the classical modal analysis methods.
在试验模态分析中分量法及矢量法是非常简便实用的，但在处理密模态结构时会出现问题。
The quadrature and Vector methods are very simple and efficient in experimental modal analysis. The difficulties will be met in the consideration of structures with close-modes.
本文采用截面状态矢量法和模态参数识别方法识别出CM 1107单轴纵切自动车床主轴部件的支承参数和模态参数。
The state vector methd of cross-section and modal analysis methd are used to identify the support and modal parameters of the spindle unit of the single spindle longitudinal automatic lathe mod.
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