Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator Demodulation
Aiming at the problem of rolling bearing early fault vibration signals non-stationary and high noise,failure frequency is difficult to extract. A fault diagnosis method of rolling bearings based on the Variational Mode Decomposition（ VMD） and symmetric difference energy operator is proposed. First o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2017-01-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.05.029 |
| _version_ | 1797819287957667840 |
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| author | Qin Bo Wang Zuda Guo Huili Sun Guodong Chen Shuai Wang Jianguo |
| author_facet | Qin Bo Wang Zuda Guo Huili Sun Guodong Chen Shuai Wang Jianguo |
| author_sort | Qin Bo |
| collection | DOAJ |
| description | Aiming at the problem of rolling bearing early fault vibration signals non-stationary and high noise,failure frequency is difficult to extract. A fault diagnosis method of rolling bearings based on the Variational Mode Decomposition（ VMD） and symmetric difference energy operator is proposed. First of all,the rolling bearing vibration signals are decomposed by VMD algorithm,a number of modal components are got. Secondly,according to the maximum kurtosis criterion,the modal component demodulated by symmetric difference energy operator is selected. Finally,a demodulated signal amplitude and frequency information are obtained and the envelope spectrum is calculated. The experimental results show that compared with the traditional energy operator,the proposed method can effectively extract the fault feature,and can restrain the false interference frequency and highlight the fault characteristic frequency,more conducive to roller bearing fault diagnosis. |
| first_indexed | 2024-03-13T09:20:44Z |
| format | Article |
| id | doaj.art-efd660de6ef44721b2917cf9a6e47198 |
| institution | Directory Open Access Journal |
| issn | 1004-2539 |
| language | zho |
| last_indexed | 2024-03-13T09:20:44Z |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj.art-efd660de6ef44721b2917cf9a6e471982023-05-26T09:44:48ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392017-01-014114314729930474Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator DemodulationQin BoWang ZudaGuo HuiliSun GuodongChen ShuaiWang JianguoAiming at the problem of rolling bearing early fault vibration signals non-stationary and high noise,failure frequency is difficult to extract. A fault diagnosis method of rolling bearings based on the Variational Mode Decomposition（ VMD） and symmetric difference energy operator is proposed. First of all,the rolling bearing vibration signals are decomposed by VMD algorithm,a number of modal components are got. Secondly,according to the maximum kurtosis criterion,the modal component demodulated by symmetric difference energy operator is selected. Finally,a demodulated signal amplitude and frequency information are obtained and the envelope spectrum is calculated. The experimental results show that compared with the traditional energy operator,the proposed method can effectively extract the fault feature,and can restrain the false interference frequency and highlight the fault characteristic frequency,more conducive to roller bearing fault diagnosis.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.05.029Variational mode decomposition;Symmetric difference energy operator;Kurtosis;Rolling bearing;Fault diagnosis |
| spellingShingle | Qin Bo Wang Zuda Guo Huili Sun Guodong Chen Shuai Wang Jianguo Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator Demodulation Jixie chuandong Variational mode decomposition;Symmetric difference energy operator;Kurtosis;Rolling bearing;Fault diagnosis |
| title | Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator Demodulation |
| title_full | Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator Demodulation |
| title_fullStr | Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator Demodulation |
| title_full_unstemmed | Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator Demodulation |
| title_short | Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator Demodulation |
| title_sort | fault diagnosis of rolling bearings based on vmd and symmetric difference energy operator demodulation |
| topic | Variational mode decomposition;Symmetric difference energy operator;Kurtosis;Rolling bearing;Fault diagnosis |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.05.029 |
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