Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals
ObjectiveCompared with the linear vibration signal, the planetary wheel torsional vibration signal is not affected by the planetary wheel passing effect and the signal transmission path, and the spectral structure is simpler. Therefore, it is expected to get better diagnosis results based on the tor...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2025-04-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.04.017 |
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| author | ZHANG Yibao HU Lei XU Yuandong SONG Xinkai |
| author_facet | ZHANG Yibao HU Lei XU Yuandong SONG Xinkai |
| author_sort | ZHANG Yibao |
| collection | DOAJ |
| description | ObjectiveCompared with the linear vibration signal, the planetary wheel torsional vibration signal is not affected by the planetary wheel passing effect and the signal transmission path, and the spectral structure is simpler. Therefore, it is expected to get better diagnosis results based on the torsional vibration signal for planetary gearbox fault diagnosis. A new method for planetary gearbox fault diagnosis based on modulation signal bispectrum (MSB) analysis of torsional vibration signals was proposed.MethodsFirstly, the instantaneous speed signal was solved by the Hilbert transform method for the encoder signal. Secondly, the instantaneous speed signal was analyzed by MSB and the optimal carrier band was searched. Finally, the MSB optimal carrier band composite spectrum was constructed for the selected optimal carrier band as a fault diagnosis feature of the planetary gearbox.ResultsThe test results demonstrate that the proposed method can more intuitively reflect the fault state of the planetary wheel as well as the fault information, which verifies the effectiveness and superiority of the method in the planetary wheel fault diagnosis. |
| format | Article |
| id | doaj-art-6fa9cd48827b4218a2fbd8314df6048b |
| institution | DOAJ |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2025-04-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-6fa9cd48827b4218a2fbd8314df6048b2025-08-20T03:09:00ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392025-04-014912613289768072Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signalsZHANG YibaoHU LeiXU YuandongSONG XinkaiObjectiveCompared with the linear vibration signal, the planetary wheel torsional vibration signal is not affected by the planetary wheel passing effect and the signal transmission path, and the spectral structure is simpler. Therefore, it is expected to get better diagnosis results based on the torsional vibration signal for planetary gearbox fault diagnosis. A new method for planetary gearbox fault diagnosis based on modulation signal bispectrum (MSB) analysis of torsional vibration signals was proposed.MethodsFirstly, the instantaneous speed signal was solved by the Hilbert transform method for the encoder signal. Secondly, the instantaneous speed signal was analyzed by MSB and the optimal carrier band was searched. Finally, the MSB optimal carrier band composite spectrum was constructed for the selected optimal carrier band as a fault diagnosis feature of the planetary gearbox.ResultsThe test results demonstrate that the proposed method can more intuitively reflect the fault state of the planetary wheel as well as the fault information, which verifies the effectiveness and superiority of the method in the planetary wheel fault diagnosis.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.04.017Torsional vibration signalModulated signal bispectrumPlanetary gearboxFault diagnosis |
| spellingShingle | ZHANG Yibao HU Lei XU Yuandong SONG Xinkai Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals Jixie chuandong Torsional vibration signal Modulated signal bispectrum Planetary gearbox Fault diagnosis |
| title | Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals |
| title_full | Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals |
| title_fullStr | Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals |
| title_full_unstemmed | Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals |
| title_short | Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals |
| title_sort | fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals |
| topic | Torsional vibration signal Modulated signal bispectrum Planetary gearbox Fault diagnosis |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.04.017 |
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