Extraction method of composite fault features of gear transmission system based on demodulation of NMD and Teager energy operators
In order to effectively identify and extract the composite fault characteristics of the gear transmission system, a composite fault diagnosis method combining nonlinear mode decomposition (NMD) and Teager energy operator demodulation is proposed. Because the envelope demodulation of Hilbert transfor...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2021-01-01
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| Series: | Measurement + Control |
| Online Access: | https://doi.org/10.1177/0020294020983370 |
| _version_ | 1818590665236283392 |
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| author | Jingyue Wang Yuefu Liu Haotian Wang Jiaqiang E |
| author_facet | Jingyue Wang Yuefu Liu Haotian Wang Jiaqiang E |
| author_sort | Jingyue Wang |
| collection | DOAJ |
| description | In order to effectively identify and extract the composite fault characteristics of the gear transmission system, a composite fault diagnosis method combining nonlinear mode decomposition (NMD) and Teager energy operator demodulation is proposed. Because the envelope demodulation of Hilbert transform has the disadvantages of large amount of calculation and end effect, it uses Teager energy operator to solve the problem of large amount of calculation, and NMD solves the problem that the fault signal features is not easy to extract under the mode aliasing. First, the NMD method is used to decompose the fault simulation signal, and the nonlinear modal component with practical physical significance is obtained. Secondly, the Teager energy operator demodulation is carried out for the nonlinear modal components, and the demodulation results are analyzed to verify the feasibility of the method. Then, the method is applied to the composite fault diagnosis of gear pitting wear in gear transmission system, and the characteristic frequency obtained from the test data is compared with the calculated characteristic frequency. The comparative analysis shows that the method can separate the fault characteristic frequencies of large and small gears. The comparative analysis with EMD and EEMD methods in simulation signal analysis and experimental research shows that this method is superior. |
| first_indexed | 2024-12-16T10:00:09Z |
| format | Article |
| id | doaj.art-786eb0646a3d42f28d0d2c2a06829599 |
| institution | Directory Open Access Journal |
| issn | 0020-2940 |
| language | English |
| last_indexed | 2024-12-16T10:00:09Z |
| publishDate | 2021-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Measurement + Control |
| spelling | doaj.art-786eb0646a3d42f28d0d2c2a068295992022-12-21T22:35:48ZengSAGE PublishingMeasurement + Control0020-29402021-01-015410.1177/0020294020983370Extraction method of composite fault features of gear transmission system based on demodulation of NMD and Teager energy operatorsJingyue Wang0Yuefu Liu1Haotian Wang2Jiaqiang E3State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, ChinaSchool of Automobile and Transportation, Shenyang Ligong University, Shenyang, ChinaSchool of Automation, Shenyang Aerospace University, Shenyang, ChinaState Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, ChinaIn order to effectively identify and extract the composite fault characteristics of the gear transmission system, a composite fault diagnosis method combining nonlinear mode decomposition (NMD) and Teager energy operator demodulation is proposed. Because the envelope demodulation of Hilbert transform has the disadvantages of large amount of calculation and end effect, it uses Teager energy operator to solve the problem of large amount of calculation, and NMD solves the problem that the fault signal features is not easy to extract under the mode aliasing. First, the NMD method is used to decompose the fault simulation signal, and the nonlinear modal component with practical physical significance is obtained. Secondly, the Teager energy operator demodulation is carried out for the nonlinear modal components, and the demodulation results are analyzed to verify the feasibility of the method. Then, the method is applied to the composite fault diagnosis of gear pitting wear in gear transmission system, and the characteristic frequency obtained from the test data is compared with the calculated characteristic frequency. The comparative analysis shows that the method can separate the fault characteristic frequencies of large and small gears. The comparative analysis with EMD and EEMD methods in simulation signal analysis and experimental research shows that this method is superior.https://doi.org/10.1177/0020294020983370 |
| spellingShingle | Jingyue Wang Yuefu Liu Haotian Wang Jiaqiang E Extraction method of composite fault features of gear transmission system based on demodulation of NMD and Teager energy operators Measurement + Control |
| title | Extraction method of composite fault features of gear transmission system based on demodulation of NMD and Teager energy operators |
| title_full | Extraction method of composite fault features of gear transmission system based on demodulation of NMD and Teager energy operators |
| title_fullStr | Extraction method of composite fault features of gear transmission system based on demodulation of NMD and Teager energy operators |
| title_full_unstemmed | Extraction method of composite fault features of gear transmission system based on demodulation of NMD and Teager energy operators |
| title_short | Extraction method of composite fault features of gear transmission system based on demodulation of NMD and Teager energy operators |
| title_sort | extraction method of composite fault features of gear transmission system based on demodulation of nmd and teager energy operators |
| url | https://doi.org/10.1177/0020294020983370 |
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