滚动轴承非线性轴承力及其对轴承系统振动特性的影响

唐云冰; 高德平; 罗贵火

滚动轴承非线性轴承力及其对轴承系统振动特性的影响

南京航空航天大学能源与动力学院, 江苏南京 210016

基金项目: 国防基础科研基金资助(01B52008)

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出版历程
- 收稿日期: 2005-05-23
- 修回日期: 2005-12-20
- 刊出日期: 2006-04-28

Non-Linear Bearing Force of the Rolling Ball Bearing and Its Influence on Vibration of Bearing System

College of Energy & Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 滚动轴承在旋转机械中应用及其广泛,其振动特性对旋转机械的正常运行有很大影响。本文基于赫兹弹性接触理论和滚动轴承运动学,推导了滚动轴承在工作状态下产生的非线性轴承力,并在此基础上对滚动轴承系统的振动特性进行了分析。研究结果表明:滚动轴承的非线性轴承力会诱发变刚度振动。系统响应中存在多种周期(谐波、次谐波和超谐波)和非周期(拟周期和混沌)响应。通过频谱图、Po incaré图和分叉图,分析了滚动轴承系统在不同参数下的周期分叉特性。当非线性轴承力和不平衡力共同作用时,滚动轴承系统会产生组合振动,随着不平衡力的增大变刚度振动所对应频率的幅值逐渐降低。
- 航空、航天推进系统 /
- 滚动轴承 /
- 非线性轴承力 /
- 变刚度振动
Abstract: Rolling ball bearing is widely used to support rotors.It is a non-negligible source of vibration in many types of rotating machines,so the vibration characteristics of the rolling ball bearing system is worth to be investigated.Hertz elastic contact theory and bearing kinematics theory were applied to calculate the force caused by the rolling ball bearing.The non-linear vibration of rotors supported by the rolling ball bearing was studied.It was found that the non-linear bearing force excited the varying compliance vibration.Many kinds of periodic(synchronous,sub-and super-synchronous) and non-periodic(quasi-periodic and chaotic) responses exist in the system.The periodic bifurcation behavior of the system was analyzed by means of spectrum diagrams,Poincaré maps and bifurcation diagrams.When non-linear bearing force and unbalance force act simultaneously,combined vibration will be generated.With the Increase of unbalance force,the varying compliance vibration will be weakened.
- aerospace propulsion system /
- rolling ball bearing /
- non-linear bearing force /
- varying compliance vibration

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参考文献(7)

[1]	丁千,陈予恕,曹树谦.滑动轴承-转子系统动力学研究若干成果[J].非线性动力学学报,2003,10(1):33～41.Ding Qian,Chen Yu-shu,Cao Shuqian.Some Achievements on Dynamics of Rotor/Bearing Systems[J].Journal of Nonlinear Dynamics in Science and Technology,2003,10 (1):33～41.
[2]	焦映厚,陈照波,夏松波,等.转子--非圆轴承系统非线性动力学行为的研究[J].航空动力学报,2000,15(4):413～418.Jiao Yinghou,Chen Zhaobo,Xia Songbo,et al.Study on Nonlinear Dynamic Behavior of Rotor-Non-Circular Bearing System[J].Journal of Aerospace Power,2000,15 (4):413～418.
[3]	Liew A,Feng N,Hahn E J.Transient Rotor Dynamic Modeling of Rolling Element Bearing Systems[J].Journal of Engineering for Gas Turbines and Power,2002,(124):984 ～ 991.
[4]	唐云冰,罗贵火,章璟璇,等.高速陶瓷滚动轴承等效刚度分析与试验[J].航空动力学报,2005,20(2):240～244.Tang Yubing,Luo Guihuo,Zhang Jingxuan,et al.Theoretical Analysis and Experiment of the High Speed Ceramic Rolling Bearing Equivalent Stiffness[J].Journal of Aerospace Power,2005,20(2):240～244.
[5]	[日]冈本纯三.球轴承的设计计算[M].北京:机械工业出版社,2003:171～179.
[6]	Harsha S P.Non-Linear Dynamic Response of a Balanced Rotor Supported on Rolling Element Bearings[J].Mechanical Systems and Signal Processing,2005,(19):551～578.
[7]	Sunnersjo C S.Varying Compliance Vibrations of Rolling Bearings[J].Journal of Sound and Vibration,1978,58 (3):363～373.