论文部分内容阅读
本文提出一种计算转子－滑动轴承－挤压油膜阻尼器转子系统的阻尼固有频率及稳定性的方法，即将传递矩奉多项式法改进后，应用于这类具有分叉结点的系统，直接得到系统的特征多项式，然后用Ｂａｉｒｓｔｏｗ－Ｎｅｗｔｏｎ僻因子法求出全部特征根。本方法具有占内存少、计算速度快、数值稳定等特点，文中对一转子模型进行了计算，其结果与实测基本相符。
In this paper, a method to calculate the damping natural frequency and stability of a rotor-journal bearing-squeeze film damper rotor system is proposed. After the transfer moment polynomial method is improved, it is applied to such systems with bifurcated nodes and directly obtained System characteristic polynomial, and then use Bairstow-Newton secluded factor method to find all the eigenvalues. The method has the characteristics of less memory, faster calculation and stable numerical value. In this paper, a rotor model is calculated and the result is in good agreement with the actual measurement.