动量轮滚动轴承-转子系统非线性动力响应分析  

Nonlinear Dynamic Response Analysis of Rotor-Ball Bearing System For Momentum Wheel

作　　者：朱玉鹏 朱川峰[2] 谢鹏飞[2] 于晓凯[2] 杨茹萍 

机构地区：[1]河南科技大学土木工程学院,河南洛阳471023 [2]洛阳轴研科技股份有限公司,河南洛阳471039

出　　处：《河南科技大学学报（自然科学版）》2018年第3期24-28,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家"863"计划基金项目(2015AA043004)

摘　　要：建立了考虑非线性轴承力的动量轮轴承-转子系统动力学方程,并采用Runge-Kutta数值方法对其求解。利用分岔图、Poincare映射图、幅值谱图依次分析了不同转速、等效阻尼、径向游隙状态下系统动力学响应特征。分析结果表明:滚动轴承-转子系统具有丰富的周期、拟周期以及混沌的响应形式。混沌响应中存在变柔度振动,且x方向较为剧烈。合理选择滚动轴承的参数组合,可使滚动轴承-转子系统处于较稳定的振动响应状态。The dynamic equation of the rotor-bearing system of momentum wheel considering the nonlinear bearing force was established and solved by Runge-Kutta numerical method. The bifurcation diagrams,Poincare maps and amplitude spectrums were used to analyze the dynamics responses characteristics of the system under different speeds,equivalent damping and radial clearance. The results show that the rolling bearing rotor system is rich in periodic,quasi-periodic and chaotic response forms. In the chaotic response,there is variable flexibility vibration and the x-direction is relatively violent. With reasonable selection of rolling bearing parameters combination,the vibration response of the rotor-ball bearing system stays in a relatively stable state.

关 键 词：滚动轴承-转子系统 非线性动力学 变柔度振动 振动响应 

分 类 号：TH133.33[机械工程—机械制造及自动化] O322[理学—一般力学与力学基础]