运行状态下转子-轴承系统模态参数辨识方法的研究

利用转子动平衡中，动平衡机可改变支承刚度的特点，提取改变支承刚度后转子滑动轴承系统的自由振动响应，用小波变换的方法剔除转子不平衡响应及高频干扰，给出了一种转子运动状态下分析与实验相结合识别模态参数的方法。模拟试验结果表明此方法的正确性和可行性。

The Method of Modal Parameter-Identification for Running Rotor-Bearing System

In this paper the free vibration response of rotor bearing system is collected via varing the support stiffness by means of characteristics of balancing machine changing support stiffness in rotor balance. With the method of wavelet transform the rotor unbalancing response and high frequency disturbance can be ridden; and a kind of method of combination of analysis with experiment to identify model parameters in the case of rotor bearing system is offered in this paper. Also, the results from simulation experiments further indicate the correctness and feasibility of this method.