Gearbox Fault Diagnosis based on Improved LMD and BP Neural Network
Aiming at the problem of the poor working environment and the fault mode is difficult to identify of the gearbox of military armored vehicles， based on the existing methods， the noise assisted analysis， LMD and BP neural network are combined to apply to the fault diagnosis of armored vehicle gearbox...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2020-01-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2020.01.029 |
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| author | Lei He Suqi Liu Ting Jiang Zhijie Huang |
| author_facet | Lei He Suqi Liu Ting Jiang Zhijie Huang |
| author_sort | Lei He |
| collection | DOAJ |
| description | Aiming at the problem of the poor working environment and the fault mode is difficult to identify of the gearbox of military armored vehicles， based on the existing methods， the noise assisted analysis， LMD and BP neural network are combined to apply to the fault diagnosis of armored vehicle gearbox. Firstly， the vibration signals under the four typical states of normal gearbox， bearing clearance fault， indentation of outer ring and broken tooth of gear of the gearbox are collected on the self-built test bench. Then， the signal is decomposed by the noise-assisted LMD method， and the energy eigenvalues of the first eight PF components are extracted. The extracted feature values are used as the input of the BP neural network. The fault type of the gearbox is identified based on the output result. The results show that the method can be effectively applied to the fault diagnosis of military armored vehicle gearbox， and the diagnostic accuracy rate is 92.5%. An effective reference way for other special gearbox diagnosis is provided by this study， and it has certain engineering practical value. |
| format | Article |
| id | doaj-art-6e28a20c8b6947a8868dd4b0983d3de3 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-6e28a20c8b6947a8868dd4b0983d3de32025-01-10T14:56:11ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392020-01-014417117629795904Gearbox Fault Diagnosis based on Improved LMD and BP Neural NetworkLei HeSuqi LiuTing JiangZhijie HuangAiming at the problem of the poor working environment and the fault mode is difficult to identify of the gearbox of military armored vehicles， based on the existing methods， the noise assisted analysis， LMD and BP neural network are combined to apply to the fault diagnosis of armored vehicle gearbox. Firstly， the vibration signals under the four typical states of normal gearbox， bearing clearance fault， indentation of outer ring and broken tooth of gear of the gearbox are collected on the self-built test bench. Then， the signal is decomposed by the noise-assisted LMD method， and the energy eigenvalues of the first eight PF components are extracted. The extracted feature values are used as the input of the BP neural network. The fault type of the gearbox is identified based on the output result. The results show that the method can be effectively applied to the fault diagnosis of military armored vehicle gearbox， and the diagnostic accuracy rate is 92.5%. An effective reference way for other special gearbox diagnosis is provided by this study， and it has certain engineering practical value.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2020.01.029Gearbox |
| spellingShingle | Lei He Suqi Liu Ting Jiang Zhijie Huang Gearbox Fault Diagnosis based on Improved LMD and BP Neural Network Jixie chuandong Gearbox |
| title | Gearbox Fault Diagnosis based on Improved LMD and BP Neural Network |
| title_full | Gearbox Fault Diagnosis based on Improved LMD and BP Neural Network |
| title_fullStr | Gearbox Fault Diagnosis based on Improved LMD and BP Neural Network |
| title_full_unstemmed | Gearbox Fault Diagnosis based on Improved LMD and BP Neural Network |
| title_short | Gearbox Fault Diagnosis based on Improved LMD and BP Neural Network |
| title_sort | gearbox fault diagnosis based on improved lmd and bp neural network |
| topic | Gearbox |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2020.01.029 |
| work_keys_str_mv | AT leihe gearboxfaultdiagnosisbasedonimprovedlmdandbpneuralnetwork AT suqiliu gearboxfaultdiagnosisbasedonimprovedlmdandbpneuralnetwork AT tingjiang gearboxfaultdiagnosisbasedonimprovedlmdandbpneuralnetwork AT zhijiehuang gearboxfaultdiagnosisbasedonimprovedlmdandbpneuralnetwork |