Research on Gear Fault Diagnosis Method based on Local Characteristic Scale Decomposition and Mathematical Morphological Filtering
In order to accurately diagnose gear faults, a gear fault diagnosis method based on local characteristic scale decomposition (LCD) and mathematical morphological filtering is proposed, which aims at the non-linear, non-stationary and low signal-to-noise ratio characteristics of vibration signals of...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2019-07-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.07.025 |
| _version_ | 1826882705914068992 |
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| author | Jiaxing Qi Weicheng Cui Xiuping Zhao |
| author_facet | Jiaxing Qi Weicheng Cui Xiuping Zhao |
| author_sort | Jiaxing Qi |
| collection | DOAJ |
| description | In order to accurately diagnose gear faults, a gear fault diagnosis method based on local characteristic scale decomposition (LCD) and mathematical morphological filtering is proposed, which aims at the non-linear, non-stationary and low signal-to-noise ratio characteristics of vibration signals of early gear faults. Firstly, some Intrinsic Scale Components (ISCs) are obtained by local characteristic scale decomposition of gear vibration signals. Then, according to kurtosis criterion, the ISC with the largest kurtosis is selected as the fault characteristic component, and then filtered by morphological difference filter. Finally, the spectrum of the filtering results is obtained and the fault diagnosis is carried out. The feasibility and validity of the method are illustrated by analyzing the simulation results and experimental data. The results show that the method has the ability to suppress noise and extract fault shock characteristics, and can effectively realize the accurate diagnosis of gear fault. |
| first_indexed | 2024-03-13T09:16:11Z |
| format | Article |
| id | doaj.art-778be4b5c6cf416b8c0ccfdc21dbc000 |
| institution | Directory Open Access Journal |
| issn | 1004-2539 |
| language | zho |
| last_indexed | 2025-02-17T03:18:21Z |
| publishDate | 2019-07-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj.art-778be4b5c6cf416b8c0ccfdc21dbc0002025-01-10T13:58:45ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392019-07-014314014530649347Research on Gear Fault Diagnosis Method based on Local Characteristic Scale Decomposition and Mathematical Morphological FilteringJiaxing QiWeicheng CuiXiuping ZhaoIn order to accurately diagnose gear faults, a gear fault diagnosis method based on local characteristic scale decomposition (LCD) and mathematical morphological filtering is proposed, which aims at the non-linear, non-stationary and low signal-to-noise ratio characteristics of vibration signals of early gear faults. Firstly, some Intrinsic Scale Components (ISCs) are obtained by local characteristic scale decomposition of gear vibration signals. Then, according to kurtosis criterion, the ISC with the largest kurtosis is selected as the fault characteristic component, and then filtered by morphological difference filter. Finally, the spectrum of the filtering results is obtained and the fault diagnosis is carried out. The feasibility and validity of the method are illustrated by analyzing the simulation results and experimental data. The results show that the method has the ability to suppress noise and extract fault shock characteristics, and can effectively realize the accurate diagnosis of gear fault.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.07.025Local characteristic scale decompositionMathematical morphological filteringGearFault diagnosis |
| spellingShingle | Jiaxing Qi Weicheng Cui Xiuping Zhao Research on Gear Fault Diagnosis Method based on Local Characteristic Scale Decomposition and Mathematical Morphological Filtering Jixie chuandong Local characteristic scale decomposition Mathematical morphological filtering Gear Fault diagnosis |
| title | Research on Gear Fault Diagnosis Method based on Local Characteristic Scale Decomposition and Mathematical Morphological Filtering |
| title_full | Research on Gear Fault Diagnosis Method based on Local Characteristic Scale Decomposition and Mathematical Morphological Filtering |
| title_fullStr | Research on Gear Fault Diagnosis Method based on Local Characteristic Scale Decomposition and Mathematical Morphological Filtering |
| title_full_unstemmed | Research on Gear Fault Diagnosis Method based on Local Characteristic Scale Decomposition and Mathematical Morphological Filtering |
| title_short | Research on Gear Fault Diagnosis Method based on Local Characteristic Scale Decomposition and Mathematical Morphological Filtering |
| title_sort | research on gear fault diagnosis method based on local characteristic scale decomposition and mathematical morphological filtering |
| topic | Local characteristic scale decomposition Mathematical morphological filtering Gear Fault diagnosis |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.07.025 |
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