齿轮－转子－滑动轴承系统时变非线性动力特性研究

The Study of Nonlinear Varying Characteristics in the Geared Rotor-Bearing System

本文应用求周期解的数值计算方法─—打靶法和判定周期解稳定性的Ｆｌｏｑｕｅｔ乘子研究了齿轮－转子－滑动轴承系统中齿轮啮合时变刚度，滑动轴承非线性特性对转子系统不平衡响应和失稳的影响，并比较了平衡位置失稳和不平衡响应周期解失稳，以及按双轴计算与单轴计算结果的差别，为工程设计理论计算提供基础。

In this paper,the shooting method combined with the principle of Floquet multiplier theory is ap-plied to study the effect of varying mesh stiffness and nonlinear journal bearing on the dynamic char-acteristics of unbalanced response and stability,The stability of equilibrium point is compared with thestability of periodic response caused by unbalanced mass. The difference of single shaft system and multi-shaft system is studied.The used method and culculated results may be useful for engineeringdesign.