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High frequency vibration analysis of ball bearings under radial loads

机译：径向载荷下球轴承的高频振动分析

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摘要

The paper investigates the role of radial load and rotating speed on the high frequency vibration of a deep groove ball bearing. Firstly, a bearing dynamic model with 6-DOF balls was established, considering the interactions between balls, races and the cage. The dynamic model was solved by fourth order varying steps Runge-Kutta integration. The frequency spectrums of dynamic response of races were analyzed with yule-walker and FFT. Secondly, a verification experiment was done with different radial loads and speeds. Finally, compared with the numerical and experimental results, the similar trend of the high frequency vibration was emerged. Higher vibration frequencies result with increasing bearing load; higher vibration amplitude cause by more quickly rotating speed. That is because the nature frequencies of the races are excited by the contact and shock between balls and races when balls leave from the non-load to the load zone. The frequency spectrums were also affected by the interaction between the balls and cage.
机译：本文研究了径向载荷和转速对深沟球轴承高频振动的影响。首先，考虑了滚珠，座圈和保持架之间的相互作用，建立了具有六自由度滚珠的轴承动力学模型。通过四阶变步长Runge-Kutta积分解决了动力学模型。使用yule-walker和FFT分析了种族动态响应的频谱。其次，在不同的径向载荷和速度下进行了验证实验。最后，与数值和实验结果相比，出现了类似的高频振动趋势。更高的振动频率会导致轴承载荷增加；较高的振动幅度是由较快的转速引起的。这是因为，当滚珠从非负载区域移到负载区域时，滚珠与滚道之间的接触和冲击会激发滚道的固有频率。球笼与球笼之间的相互作用也会影响频谱。

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  • 来源
  • 作者

    Zhao Yang; Dong Guihua; Liu Heng; Wang Fengtao; Li Meng; Jing Minqing;

  • 作者单位

    Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China;

    Xian XD Switchgear Elect Co Ltd, Xian, Shaanxi, Peoples R China;

    Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China;

    Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China;

    Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China;

    Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ball bearings; dynamics model; high frequency vibration; composite contact stiffness; shock;

    机译：球轴承;动力学模型;高频振动;复合接触刚度;冲击;

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