考虑时变动态参数的高速列车轴箱轴承动态响应分析

IF 7.9 1区工程技术 Q1 ENGINEERING, MECHANICAL

Mechanical Systems and Signal Processing Pub Date : 2024-11-07 DOI:10.1016/j.ymssp.2024.112119

Zejun Zheng, Dongli Song, Weihua Zhang, Xiao Xu, Chao Ma, Wang Cui

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引用次数: 0

摘要

高速列车轴箱轴承的动态参数具有时变特性，因此有必要研究时变特性对轴承动态响应的影响。本文基于轴承内外动态参数的时变特性，建立了轴箱轴承的二自由度动态模型。分析了不同外圈滚道缺陷范围轴承的动态响应，并比较了顺应性变化振动和外圈滚道缺陷故障振动的异同。结果表明，这两种振动模式具有相同的特征频率，但滚子与滚道之间的接触力和振动加速度幅值却大不相同。最后，通过对运行中的高速铁路线的监测信号验证了所建立的动态模型的有效性。

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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Dynamic response analysis of high-speed train axle box bearing by considering time-varying dynamic parameters

The dynamic parameters of high-speed train axle box bearing have time-varying characteristics, it is necessary to investigate the influence of time-varying characteristics on the dynamic response of the bearing. In this paper, based on the time-varying characteristics of the internal and external dynamic parameters of the bearing, a two-degree-of-freedom dynamic model of axle box bearing is established. The dynamic responses of bearings with different ranges of outer raceway defects are analyzed, and the similarities and differences between the varying compliance vibration and outer ring raceway defect fault vibration are compared. The results show that these two vibration modes have the same characteristic frequency, but the contact force between rollers and raceways and vibration acceleration amplitudes are greatly different. Finally, the effectiveness of the established dynamic model is verified through monitoring signal on the operation high-speed railway line.

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来源期刊

Mechanical Systems and Signal Processing 工程技术-工程：机械

CiteScore

14.80

自引率

13.10%

发文量

1183

审稿时长

5.4 months

期刊介绍： Journal Name: Mechanical Systems and Signal Processing (MSSP) Interdisciplinary Focus: Mechanical, Aerospace, and Civil Engineering Purpose:Reporting scientific advancements of the highest quality Arising from new techniques in sensing, instrumentation, signal processing, modelling, and control of dynamic systems