|本期目录/Table of Contents|

[1]梁 波,王志海,张方伟.基于小波包和积分补偿调参随机共振在轴承故障检测中的应用[J].工业仪表与自动化装置,2020,(03):8-14.[doi:1000-0682(2020)03-0000-00]
 LIANG Bo,WANG Zhihai,ZHANG Fangwei.Application of SRR based on wavelet packet and integral compensation in bearing fault detection[J].Industrial Instrumentation & Automation,2020,(03):8-14.[doi:1000-0682(2020)03-0000-00]
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基于小波包和积分补偿调参随机共振在轴承故障检测中的应用

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2020年03期
页码:
8-14
栏目:
出版日期:
2020-06-15

文章信息/Info

Title:
Application of SRR based on wavelet packet and integral compensation in bearing fault detection
作者:
梁 波123王志海123张方伟123
1.吉利控股集团;
2.吉利科技集团,杭州 310000;
3.吉智新能源汽车科技技术有限公司,杭州 310051
Author(s):
LIANG Bo123 WANG Zhihai123 ZHANG Fangwei123
1. Geely Holding Group;
2. Geely Technology Group, Hangzhou 310000, China;
3. Jizhi New Energy Automotive Technology Co., Ltd., Hangzhou 310051, China)
关键词:
小波包积分补偿大参数微弱信号共振系统故障诊断
Keywords:
wavelet packet integral compensation large parameter weak signal resonance system fault diagnosis
分类号:
TH133.3TH165.3
DOI:
1000-0682(2020)03-0000-00
文献标志码:
A
摘要:
针对随机共振只适用于解决轴承早期单一频段故障微弱信号以及小参数随机共振系统难以检测多频段大参数输入信号的问题,提出了一种小波包和积分补偿法调节多频段大参数以实现随机共振。利用小波包变换法对多频微弱含噪信号进行分离,得到高频细节信号和低频近似信号,再利用积分补偿算法得到补偿系数,并对模型中的非线性方程进行积分补偿;由积分补偿方程建立新的非线性共振系统模型,利用新模型进行随机共振动态响应并输出其频谱,获得信号故障信息。通过对实验室采集的轴承径向振动信号分析,可以有效获得轴承故障特征频率,仿真与实验验证了理论方法的正确性。
Abstract:
Aiming at the problem that random resonance is only suitable for solving the problem of weak single-band fault early signals in bearings and small-parameter stochastic resonance systems are difficult to detect multi-band large-parameter input signals,a wavelet packet and integral compensation method are proposed to adjust multi-band large parameters to achieve random resonance.The multi- frequency weakly noisy signal is separated by the wavelet packet transform method to obtain the high-frequency detail signal and the low-frequency approximate signal,and then the integral compensation algorithm is used to obtain the compensation coefficient.The nonlinear equation in the model is transformed and multiplied by the compensation coefficient.Cancel the damping attenuation, and establish a new nonlinear resonance system model by the integral compensation equation.Useing the new model to perform the dynamic response of random resonance and output its frequency spectrum to obtain signal fault information.By analyzing the bearing radial vibration signal collected in the laboratory,the characteristic frequency of bearing failure can be effectively obtained.Simulation and experiments verify the correctness of the theoretical method.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-11-08
作者简介:梁波(1989),男,硕士,工程师,研究方向为检测装置。
更新日期/Last Update: 1900-01-01