Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication
The stable operation of friction pairs is one of the most critical factors to maintain the stable operation of mechanical equipment. The real-time monitoring of lubrication state of the friction pair is very important to ensure the normal operation of machinery and realize early warning of wear fail...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2025-02-01
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| Series: | Friction |
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| Online Access: | https://www.sciopen.com/article/10.26599/FRICT.2025.9440938 |
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| author | Yiming Lei Yange Feng Zixiang Wu Qiang Gao Zhuopei Zhang Wenpeng Wang Liucheng Wang Youqiang Wang Daoai Wang |
| author_facet | Yiming Lei Yange Feng Zixiang Wu Qiang Gao Zhuopei Zhang Wenpeng Wang Liucheng Wang Youqiang Wang Daoai Wang |
| author_sort | Yiming Lei |
| collection | DOAJ |
| description | The stable operation of friction pairs is one of the most critical factors to maintain the stable operation of mechanical equipment. The real-time monitoring of lubrication state of the friction pair is very important to ensure the normal operation of machinery and realize early warning of wear failure, but it is also a big challenge. In this article, a new lubrication in-situ monitoring system is designed, which can monitor the lubrication and wear state of friction pairs through triboelectrification. The current acquisition module and friction coefficient acquisition module are integrated into a high vacuum hydrodynamic oil film thickness measuring instrument to explore the intrinsic relationship between triboelectricity and friction coefficient curves. When severe wear occurs, the oil film at the interface of the friction pair is no longer complete, and the accumulated triboelectric charge at the interface of the friction pair breaks down the air and causes discharge, the friction current suddenly increases from nanoampere level to microampere level. The time node when discharge occurs at the steel ball interface is well consistent with the time node when the friction pair suffers serious wear. According to the corresponding relationship between the triboelectric current and the friction and wear status of the friction pair, an early wear warning monitoring system is designed to monitor the operating status of the friction pair in real time through triboelectric signals. When the mechanical friction pair is worn, the early warning system will send out sound and light alarm signals and send real-time warnings to the mobile terminal through the Internet of Things, providing a new and reliable method for real-time monitoring of friction and wear of grease-lubricated machinery. |
| format | Article |
| id | doaj-art-e32be23946584b8ba2d6cdb467a60705 |
| institution | DOAJ |
| issn | 2223-7690 2223-7704 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Friction |
| spelling | doaj-art-e32be23946584b8ba2d6cdb467a607052025-08-20T03:21:07ZengTsinghua University PressFriction2223-76902223-77042025-02-01132944093810.26599/FRICT.2025.9440938Monitoring of lubrication and wear in-situ by triboelectrification under grease lubricationYiming Lei0Yange Feng1Zixiang Wu2Qiang Gao3Zhuopei Zhang4Wenpeng Wang5Liucheng Wang6Youqiang Wang7Daoai Wang8State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaQingdao Center of Resource Chemistry and New Materials, Qingdao 266104, ChinaQingdao Center of Resource Chemistry and New Materials, Qingdao 266104, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaQingdao Center of Resource Chemistry and New Materials, Qingdao 266104, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaSchool of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaThe stable operation of friction pairs is one of the most critical factors to maintain the stable operation of mechanical equipment. The real-time monitoring of lubrication state of the friction pair is very important to ensure the normal operation of machinery and realize early warning of wear failure, but it is also a big challenge. In this article, a new lubrication in-situ monitoring system is designed, which can monitor the lubrication and wear state of friction pairs through triboelectrification. The current acquisition module and friction coefficient acquisition module are integrated into a high vacuum hydrodynamic oil film thickness measuring instrument to explore the intrinsic relationship between triboelectricity and friction coefficient curves. When severe wear occurs, the oil film at the interface of the friction pair is no longer complete, and the accumulated triboelectric charge at the interface of the friction pair breaks down the air and causes discharge, the friction current suddenly increases from nanoampere level to microampere level. The time node when discharge occurs at the steel ball interface is well consistent with the time node when the friction pair suffers serious wear. According to the corresponding relationship between the triboelectric current and the friction and wear status of the friction pair, an early wear warning monitoring system is designed to monitor the operating status of the friction pair in real time through triboelectric signals. When the mechanical friction pair is worn, the early warning system will send out sound and light alarm signals and send real-time warnings to the mobile terminal through the Internet of Things, providing a new and reliable method for real-time monitoring of friction and wear of grease-lubricated machinery.https://www.sciopen.com/article/10.26599/FRICT.2025.9440938friction sensingwear warningtriboelectric sensorin-situ monitoringreal-time |
| spellingShingle | Yiming Lei Yange Feng Zixiang Wu Qiang Gao Zhuopei Zhang Wenpeng Wang Liucheng Wang Youqiang Wang Daoai Wang Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication Friction friction sensing wear warning triboelectric sensor in-situ monitoring real-time |
| title | Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication |
| title_full | Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication |
| title_fullStr | Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication |
| title_full_unstemmed | Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication |
| title_short | Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication |
| title_sort | monitoring of lubrication and wear in situ by triboelectrification under grease lubrication |
| topic | friction sensing wear warning triboelectric sensor in-situ monitoring real-time |
| url | https://www.sciopen.com/article/10.26599/FRICT.2025.9440938 |
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