双列深沟球轴承刚柔耦合多体接触建模与振动特性研究

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蒋玲莉,卜忠颉,韩清凯,李学军.双列深沟球轴承刚柔耦合多体接触建模与振动特性研究[J].,2017,57(4):360-366

双列深沟球轴承刚柔耦合多体接触建模与振动特性研究

Research on rigid-flexible coupling multi-body contact modeling and vibration characteristics of double-row deep-groove ball bearing

DOI：10.7511/dllgxb201704005

中文关键词:双列深沟球轴承刚柔耦合弹性流体动力润滑接触刚度振动特性

英文关键词:double-row deep-groove ball bearing rigid-flexible coupling elastohydrodynamic lubrication contact stiffness vibration characteristics

基金项目:国家自然科学基金资助项目(51575177)；中国博士后科学基金资助项目(165246)；湖南省科技厅重点研发计划资助项目(2015JC3108).

作者	单位
蒋玲莉,卜忠颉,韩清凯,李学军

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中文摘要:

在研究双列深沟球轴承各组件之间动力学关系的基础上，基于弹性流体动力润滑理论和赫兹接触理论，利用多体动力学分析软件ADAMS，结合有限元分析软件ANSYS柔性化处理，建立了双列深沟球轴承刚柔耦合多体接触动力学仿真模型．综合赫兹接触刚度和润滑接触刚度的影响得到双列深沟球轴承等效刚度．分析了不同荷载、转速、油膜厚度对双列深沟球轴承振动特性的影响，结果表明，合适的荷载可抑制双列深沟球轴承振动；转速的增加可加剧振动；随着油膜厚度的增大，振动先减小后增大．研究结果为双列深沟球轴承结构优化设计、减振降噪和运行状态监测提供了参考依据．

英文摘要:

A rigid-flexible coupling multi-body contact dynamics simulation model of double-row deep-groove ball bearing is proposed, which is based on analysis of the dynamic relationship among components of studied bearing through considering both the elastohydrodynamic lubrication theory and the Hertz contact theory, using the multi-body dynamics analysis software ADAMS combining flexible treatment by the finite element analysis software ANSYS. The equivalent stiffness is developed synthesizing the effect of Hertz contact stiffness and lubrication contact stiffness. The effects of different load, rotational speed and oil film thickness on the vibration characteristics of double-row deep-groove ball bearing are analyzed. The experimental results show that the adequate load can restrain the vibration of double-row deep-groove ball bearings, the increase of rotational speed can intensify the vibration, and the vibration decreases first, then increases with the increase of oil film thickness. The studied work can provide reference for structure optimization design, vibration and noise reduction and running state monitoring of double-row deep-groove ball bearing.

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