球轴承的疲劳寿命和疲劳可靠性机理

IF 1.5 4区工程技术 Q3 MECHANICS

Journal of Mechanics Pub Date : 2024-01-24 DOI:10.1093/jom/ufae006

Hongchuan Cheng, Xinhai Li, Guohui Ma, Xiafei Shi, Zhou Yang

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引用次数: 0

摘要

球轴承作为旋转机械的主要支撑部件，其疲劳寿命和疲劳可靠性直接影响设备的精度、稳定性和可靠性。本文基于轴承准静态模型和疲劳寿命理论，分析了滚动体空间位置对轴承力学性能和疲劳寿命的影响，研究了轴承工况等参数的作用机理。此外，基于轴承的应力强度模型和疲劳寿命模型，采用扰动法、埃奇沃斯数列和第四矩技术分析了轴承的疲劳可靠性和敏感性，并通过蒙特卡罗模拟验证了其正确性。结果具有重要的理论和实用价值，可为球轴承的可靠性优化设计、故障机理和故障诊断方法研究提供理论支持。

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Fatigue life and fatigue reliability mechanism of ball bearings

As the main supporting parts of rotating machinery, the fatigue life and fatigue reliability of ball bearings directly affect the accuracy, stability and reliability of equipment. Based on the quasi-static model of bearing and the fatigue life theory, this paper analyzes the effect of the spatial position of rolling element on the mechanical properties and fatigue life of bearing, and studies the action mechanism of bearing working conditions and other parameters. In addition, based on the stress-strength model and the fatigue life model of bearing, the fatigue reliability and sensitivity of bearings are analyzed by means of perturbation method, Edgeworth series and fourth moment technique, and the correctness is verified by the Monte Carlo simulation. Results have important theoretical and practical value, and can provide theoretical support for the research of reliability optimization design, fault mechanism and fault diagnosis method of ball bearings.

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来源期刊

Journal of Mechanics 物理-力学

CiteScore

3.20

自引率

11.80%

发文量

审稿时长

6 months

期刊介绍： The objective of the Journal of Mechanics is to provide an international forum to foster exchange of ideas among mechanics communities in different parts of world. The Journal of Mechanics publishes original research in all fields of theoretical and applied mechanics. The Journal especially welcomes papers that are related to recent technological advances. The contributions, which may be analytical, experimental or numerical, should be of significance to the progress of mechanics. Papers which are merely illustrations of established principles and procedures will generally not be accepted. Reports that are of technical interest are published as short articles. Review articles are published only by invitation.