Vibration characteristic analysis of rolling bearing outer ring looseness fault based on dynamics

JIA Xiangyang; TENG Wei; KONG Lingxing; PENG Dikang; MA Zhiyong; LIU Yibing

doi:10.16579/j.issn.1001.9669.2025.10.007

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Vibration characteristic analysis of rolling bearing outer ring looseness fault based on dynamics

·Vibration·Noise·Monitoring·Diagnosis· | 更新时间：2025-10-31

- Vibration characteristic analysis of rolling bearing outer ring looseness fault based on dynamics
- Journal of Mechanical Strength Vol. 47, Issue 10, Pages: 63-70(2025)
- 作者机构：
  
  1.华北电力大学电站能量传递转换与系统教育部重点实验室，北京 102206
  2.中国电力科学研究院有限公司，北京 100192
- 作者简介：
  
  TENG Wei, E-mail: tengw@ncepu.edu.cn
- 基金信息：
  
  National Natural Science Foundation of China(51775186);State Grid Corporation Headquarters Management Science and Technology Project(5108-202218280A-2-298-XG)
- DOI：10.16579/j.issn.1001.9669.2025.10.007
  CLC： TH133.33
- Received：24 January 2024，
  
  Revised：2024-03-18，
  
  Published：15 October 2025
- 稿件说明：
移动端阅览
贾向阳，滕伟，孔令行，等. 基于动力学的滚动轴承跑外圈故障振动特性分析［J］. 机械强度，2025，47（10）：63-70.

JIA Xiangyang，TENG Wei，KONG Lingxing，et al. Vibration characteristic analysis of rolling bearing outer ring looseness fault based on dynamics［J］. Journal of Mechanical Strength，2025，47（10）：63-70.
贾向阳，滕伟，孔令行，等. 基于动力学的滚动轴承跑外圈故障振动特性分析［J］. 机械强度，2025，47（10）：63-70. DOI： 10.16579/j.issn.1001.9669.2025.10.007.

JIA Xiangyang，TENG Wei，KONG Lingxing，et al. Vibration characteristic analysis of rolling bearing outer ring looseness fault based on dynamics［J］. Journal of Mechanical Strength，2025，47（10）：63-70. DOI： 10.16579/j.issn.1001.9669.2025.10.007.

摘要

滚动轴承跑外圈故障容易诱发传动系统失效。考虑滚动轴承非线性接触力、碰摩力、外圈与轴承座之间的阻尼力等因素，建立了滚动轴承跑外圈故障下的六自由度非线性动力学模型，讨论了跑外圈故障时碰摩力和不平衡力的主导关系，分析了滚动轴承跑外圈故障时的振动特性。仿真结果表明，当发生轴承跑外圈故障时，其特征频率呈现为转轴的转动频率及其倍频成分，实际测试的风电轴承跑外圈故障数据验证了模型的准确性。研究结果表明，滚动轴承跑外圈故障是由于外圈和轴承座之间出现松动，在不平衡作用力驱使下外圈与轴承座之间产生以转频倒数为单位的周期性冲击与摩擦造成的，研究结果可为滚动轴承跑外圈的故障机制分析与故障诊断提供依据。

Abstract

Rolling bearing looseness faults are likely to induce transmission system fault. Considering the factors such as nonlinear contact force of rolling bearings

rub-impact force

damping force between outer ring and housing

a six-degree-of-freedom nonlinear dynamics model was established under the fault of rolling bearing outer ring looseness

and the vibration characteristics of rolling bearing outer ring looseness were analyzed. The simulation results show that the characteristic frequency of the outer ring looseness fault is presented as the rotational frequency of the rotating shaft and its multiple components

and the actual tested wind power bearing ring fault data verifies the accuracy of the model. The results of this paper show that the rolling bearing outer ring looseness is caused by loosing between the outer ring and the housing

and the cyclic impact and friction between the outer ring and housing are formed under the unbalance force with the rotational speed of the shaft and its harmonics. The research results provide a theoretical basis for realizing the mechanism analysis of rolling bearing outer ring looseness and fault diagnosis of the rolling bearing.

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references

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