Rolling Element Bearing Fault Diagnosis Using a Three-step Scheme

被引：0
作者：
一种基于三步法的轴承故障诊断方法
机构：
[1] Naval University of Engineering, College of Power Engineering, Wuhan
来源：
Zhang, Yongxiang (13397195219@163.com) | 1600年 / Chinese Mechanical Engineering Society卷 / 60期
关键词：
fault diagnosis; rolling element bearing; spectrum correction; transmission path elimination technique; weighted time-frequency energy ratio;
D O I：
10.3901/JME.2024.14.051
中图分类号：
学科分类号：
摘要：
The complex transmission path will cause serious attenuation and distortion of the measured signal, and the interference of strong background noise will greatly reduce the signal-to-noise ratio of the signal, and bring great difficulties to the separation and extraction of the fault signal. Therefore, a bearing fault diagnosis method based on three-step method is proposed to solve this problem. First, a trend-line based transmission path elimination technique is applied to suppress the influence of the complex transmission path; then, spectrum correction technology is used to accurately calculate the frequency, amplitude and phase of the harmony interference, and harmonics constructed by the above parameters are removed from the original signal to achieve the purpose of suppressing harmony interference; finally, the optimal filter frequency band is selected by the maximum weighted time-frequency energy ratio which based on all sub-bands, so as to realize the fault diagnosis of the rolling element bearings. Simulation and experimental results indicate that the proposed algorithm can better suppress the interference of complex transfer paths and strong background noise, and has better performance than the recent novel norm-infogram and IESFOgram.. © 2024 Chinese Mechanical Engineering Society. All rights reserved.
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页码：51 / 68
页数：17
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