考虑缺陷变形的时变激励下滚动轴承故障的动态建模与分析

IF 0.7 Q4 ENGINEERING, MECHANICAL
Chao Zhang, Yangbiao Wu, Shuai Xu, Feifan Qin, Le Wu, Bing Ouyang
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引用次数: 0

摘要

故障机理分析是故障诊断的方法之一,而滚动轴承故障的动态建模在研究故障机理方面起着至关重要的作用。现有的动态故障模型只考虑了故障尺寸和轴承转速对冲击力的影响,对冲击力的描述不够全面。为了更准确地描述冲击力的动态故障模型,本文重点研究了具有外圈滚道故障的深沟球轴承。考虑了缺陷变形、速度和故障尺寸等因素,并提出了瞬时冲击力激励函数。基于该激励函数,建立了深沟球轴承外滚道故障的动态模型。最后,通过仿真和实验对比,结果表明本文模型的故障特征频率及其谐波更接近实际故障特征频率,误差减少了 1 到 2 Hz。因此,本文提出的模型更有效、更准确,为故障机理研究提供了更精确的滚动轴承故障模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamic modeling and analysis of rolling bearing faults under time-varying excitations considering defect deformation
Fault mechanism analysis is one of the methods in fault diagnosis, and the dynamic modeling of rolling bearing faults plays a crucial role in studying fault mechanisms. Existing dynamic fault models only consider the impact of fault size and bearing speed on the impact force, providing an incomplete description of the impact force. In order to more accurately describe the dynamic fault model of impact forces, this paper focuses on the deep groove ball bearing with outer race faults. Factors such as defect deformation, speed, and fault size are considered, and an instantaneous impact force excitation function is proposed. Based on this proposed excitation function, a dynamic model for the outer race fault of deep groove ball bearings is established. Finally, through simulation and experimental comparison, the results indicate that the fault characteristic frequencies and their harmonics of the model in this paper are closer to the actual fault characteristic frequencies, reducing the error by 1 to 2 Hz. Therefore, the model proposed in this paper is more effective and accurate, providing a more precise rolling bearing fault model for the study of fault mechanisms.
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来源期刊
Journal of Vibroengineering
Journal of Vibroengineering 工程技术-工程:机械
CiteScore
1.70
自引率
0.00%
发文量
97
审稿时长
4.5 months
期刊介绍: Journal of VIBROENGINEERING (JVE) ISSN 1392-8716 is a prestigious peer reviewed International Journal specializing in theoretical and practical aspects of Vibration Engineering. It is indexed in ESCI and other major databases. Published every 1.5 months (8 times yearly), the journal attracts attention from the International Engineering Community.
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