An Improved Empirical Wavelet Transform and Refined Composite Multiscale Dispersion Entropy-Based Fault Diagnosis Method for Rolling Bearing
The vibration signals collected by the sensor often have non-stationary and non-linear characteristics owing to the complexity of working environment of rolling bearing, so it is difficult to obtain useful and stable vibration information for diagnosis. Empirical Wavelet Transform (EWT) can effectiv...
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IEEE
2020-01-01
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Online Access: | https://ieeexplore.ieee.org/document/8830419/ |
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author | Jinde Zheng Siqi Huang Haiyang Pan Kuosheng Jiang |
author_facet | Jinde Zheng Siqi Huang Haiyang Pan Kuosheng Jiang |
author_sort | Jinde Zheng |
collection | DOAJ |
description | The vibration signals collected by the sensor often have non-stationary and non-linear characteristics owing to the complexity of working environment of rolling bearing, so it is difficult to obtain useful and stable vibration information for diagnosis. Empirical Wavelet Transform (EWT) can effectively decompose non-stationary and nonlinear signals, but it is not suitable for signal analysis of bearing with a complicated spectrum. In this paper, an improved EWT (IEWT) method is proposed by developing a new segmentation approach. Meanwhile, the IEWT is compared with empirical mode decomposition (EMD) and EWT to verify the superiority of IEWT in decomposition accuracy. By combining with the refined composite multiscale dispersion entropy (RCMDE), which is a powerful nonlinear tool for irregularity measurement of vibration signals, a new diagnosis method based on IEWT, RCMDE, multi-cluster feature selection and support vector machine is proposed. Then the method is applied to analysis of bearing in this paper and the results show that the new method has higher identifying rate and better performance than that of the methods of RCMDE combining with EMD or EWT. Also, the superiority of RCMDE to dispersion entropy and multiscale dispersion entropy is investigated, together with the superiority of MCFS for feature selection. |
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id | doaj.art-82566cdea23f48098d50e94b0f961744 |
institution | Directory Open Access Journal |
issn | 2169-3536 |
language | English |
last_indexed | 2024-12-24T04:54:28Z |
publishDate | 2020-01-01 |
publisher | IEEE |
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series | IEEE Access |
spelling | doaj.art-82566cdea23f48098d50e94b0f9617442022-12-21T17:14:27ZengIEEEIEEE Access2169-35362020-01-01816873216874210.1109/ACCESS.2019.29406278830419An Improved Empirical Wavelet Transform and Refined Composite Multiscale Dispersion Entropy-Based Fault Diagnosis Method for Rolling BearingJinde Zheng0Siqi Huang1Haiyang Pan2https://orcid.org/0000-0001-9868-8154Kuosheng Jiang3https://orcid.org/0000-0003-0300-1976School of Mechanical Engineering, Anhui University of Technology, Ma’anshan, ChinaSchool of Mechanical Engineering, Anhui University of Technology, Ma’anshan, ChinaSchool of Mechanical Engineering, Anhui University of Technology, Ma’anshan, ChinaAnhui Key Laboratory of Mine Intelligent Equipment and Technology, Anhui University of Science and Technology, Huainan, ChinaThe vibration signals collected by the sensor often have non-stationary and non-linear characteristics owing to the complexity of working environment of rolling bearing, so it is difficult to obtain useful and stable vibration information for diagnosis. Empirical Wavelet Transform (EWT) can effectively decompose non-stationary and nonlinear signals, but it is not suitable for signal analysis of bearing with a complicated spectrum. In this paper, an improved EWT (IEWT) method is proposed by developing a new segmentation approach. Meanwhile, the IEWT is compared with empirical mode decomposition (EMD) and EWT to verify the superiority of IEWT in decomposition accuracy. By combining with the refined composite multiscale dispersion entropy (RCMDE), which is a powerful nonlinear tool for irregularity measurement of vibration signals, a new diagnosis method based on IEWT, RCMDE, multi-cluster feature selection and support vector machine is proposed. Then the method is applied to analysis of bearing in this paper and the results show that the new method has higher identifying rate and better performance than that of the methods of RCMDE combining with EMD or EWT. Also, the superiority of RCMDE to dispersion entropy and multiscale dispersion entropy is investigated, together with the superiority of MCFS for feature selection.https://ieeexplore.ieee.org/document/8830419/Fault diagnosisimproved empirical wavelet transformrefined composite multiscale dispersion entropyfeature extractionrolling bearing |
spellingShingle | Jinde Zheng Siqi Huang Haiyang Pan Kuosheng Jiang An Improved Empirical Wavelet Transform and Refined Composite Multiscale Dispersion Entropy-Based Fault Diagnosis Method for Rolling Bearing IEEE Access Fault diagnosis improved empirical wavelet transform refined composite multiscale dispersion entropy feature extraction rolling bearing |
title | An Improved Empirical Wavelet Transform and Refined Composite Multiscale Dispersion Entropy-Based Fault Diagnosis Method for Rolling Bearing |
title_full | An Improved Empirical Wavelet Transform and Refined Composite Multiscale Dispersion Entropy-Based Fault Diagnosis Method for Rolling Bearing |
title_fullStr | An Improved Empirical Wavelet Transform and Refined Composite Multiscale Dispersion Entropy-Based Fault Diagnosis Method for Rolling Bearing |
title_full_unstemmed | An Improved Empirical Wavelet Transform and Refined Composite Multiscale Dispersion Entropy-Based Fault Diagnosis Method for Rolling Bearing |
title_short | An Improved Empirical Wavelet Transform and Refined Composite Multiscale Dispersion Entropy-Based Fault Diagnosis Method for Rolling Bearing |
title_sort | improved empirical wavelet transform and refined composite multiscale dispersion entropy based fault diagnosis method for rolling bearing |
topic | Fault diagnosis improved empirical wavelet transform refined composite multiscale dispersion entropy feature extraction rolling bearing |
url | https://ieeexplore.ieee.org/document/8830419/ |
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