用广义逆和灵敏度分析修正动力学模型

Modification of Dynamical Model by Using Generalized Inverse and Sensitivity Analysis

本文提出一种结构动力学模型的修正方法,该方法以模态实验结果为基准修正结构参数,从而使计算和实验所得模态参数更为吻合.数值算例和应用实例均表明,本文方法具有很高的修正精度,是一种简便有效的修正方法.

A new method for modifying the structure dynamic model has been developed in this paper.By taking the modal test results as the criterion, this method can be used to modify the structural parameters to get better agreement between analytical and experimental modal parameters. Numerical and practical examples have shown that the presented method is quite accurate and efficient.