摘要
提出一种利用实测结构支承点的原点频响函数,识别其支承参数的方法。该方法具有测量次数少,避免了实测频响函数矩阵求逆运算等特点。不仅方便了工程应用,而且实践也表明该方法具有良好的识别精度。
This paper proposed an identification method which can directly uses the measured the drive-point frequency response functions (FRFs) of the whole structure and the substructure at the supporting points to identify the support charateristic parameters. This method is vertified and demonstrated by theoretical simulation and experiment. The result shows that this methods is of practical use in engineering and can give high identification accuracy.
关键词
参数辨识
支承特性
结构支承
机械结构
Identification of parameter
support property
substructure
