摘要
文章利用矩阵函数理论直接给出了可去耦的多自由度有阻尼线性振动系统时域自由响应的不含模态参数的表达式,并列举了它在模态参数识别和结构参数识别中的应用。
The free responses of undamped and damped NDOF linear systems are expressed by means of modal parameter,i.e.eigenvalue and eigenvector.Directly using matrix function theory,this paper gives the expression without modal parameter,also gives its application in the identification of modal and constructional parameters of general uncoupled systems.
关键词
振动
参数识别
可去耦
vibration
identification of the parameters
uncoupled system
