中国机械工程2011，Vol.22Issue(23)：2806-2812,7.
含Alford力的非线性转子一滚动轴承系统动力分析
Dynamic Analysis of a Rotor--ball Bearing Nonlinear System with Alford Force
成玫 1孟光2
作者信息
- 1. 上海卫星工程研究所,上海200240
- 2. 上海航天技术研究院,上海200240
- 折叠
摘要
Abstract
Under the conditions of both the nonlinear ball bearing force and Alford force, a dy- namic model of the rotor system was set up. Then nonlinear dynamic properties of rotor--ball bearing with Alford force were studied by means of numerical stimulation. The nominal contact angle of the ball bearing was introduced in the improved ball bearing method. And the result is in good agreement with the previous conclusions, so it is feasible using this method to predict the dynamic characteristics of a rotor system. By using the numerical value integral method, the influences of a series of factors on the nonlinear dynamic behaviors of the coupled system were studied. By changing the values of the rotation speeds, the ball bearing clearance and the rotor eccentricity, the bifurcation diagram was ob- tained respectively. Meanwhile the pictures of some typical Poincare maps and frequency spectra were also given. From the results of the numerical simulation, it is found that there are periodic motion, approximate--periodic motion and chaos motion under combined Alford force and ball bearing.关键词
转子/滚动轴承/Alford力/非线性动力学/分岔Key words
rotor/ball bearing/Alford force/nonlinear dynamics/bifurcation分类
能源科技引用本文复制引用
成玫,孟光..含Alford力的非线性转子一滚动轴承系统动力分析[J].中国机械工程,2011,22(23):2806-2812,7.
