Dynamic interactions in spalled bearings: A coupled friction-IAS model for fault-induced torsional vibrations

IF 4.9 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration Pub Date : 2025-10-13 DOI:10.1016/j.jsv.2025.119495

Chao Li , Yu Guo , Xin Chen

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引用次数: 0

Abstract

Instantaneous angular speed (IAS)-based condition monitoring has emerged as a significant research topic since it offers advantages of short transfer paths, no periodic calibration, etc. However, the contribution of complex friction to IAS perturbations has not yet been effectively elaborated. The torsional vibration analysis of the IAS perturbation of bearings is usually simplified as the coupling of normal and tangential force in previous works. To address this issue, this study proposes a comprehensive dynamic model of a ball bearing with a localized spall on its outer race. Firstly, a method for calculating the time-varying friction moment considering the elastic hysteresis of raceway material, the differential sliding friction between ball and raceway, and the viscous resistance caused by lubrication is proposed. Secondly, the interactions of friction moments and the localized spall are introduced, which further elaborates on the influence of friction factors on IAS signal perturbation. Finally, simulation and experimental results validate the proposed model, and the effects of localized spalls on IAS signals on the IAS signals and the friction moments are analyzed. The detectability of the IAS signal is also discussed under different shaft speeds and external loads.

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滑动轴承的动态相互作用：故障诱导扭转振动的耦合摩擦- ias模型

基于瞬时角速度（IAS）的状态监测具有传递路径短、无需周期性校准等优点，已成为一个重要的研究课题。然而，复杂摩擦对IAS扰动的贡献尚未得到有效阐述。在以往的工作中，通常将轴承IAS摄动的扭转振动分析简化为法向力和切向力的耦合。为了解决这一问题，本研究提出了一个具有局部碎片的球轴承的综合动力学模型。首先，提出了一种考虑滚道材料弹性滞回、球与滚道之间的微分滑动摩擦以及润滑引起的粘性阻力的时变摩擦力矩计算方法。其次，介绍了摩擦力矩与局部小块的相互作用，进一步阐述了摩擦因素对IAS信号摄动的影响。最后，通过仿真和实验验证了该模型的有效性，并分析了IAS信号局部碎片对IAS信号和摩擦力矩的影响。本文还讨论了在不同轴速和外载荷作用下IAS信号的可检测性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sound and Vibration 工程技术-工程：机械

CiteScore

9.10

自引率

10.60%

发文量

551

审稿时长

69 days

期刊介绍： The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application. JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.