Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Ships
Effective control of the health operating condition of multi-support, ultra-long shaft system water-lubricated stern bearings is crucial for supporting the intelligent maintenance and health management of ships. This study investigates the failure modes of water-lubricated stern bearings and focuses...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/1/14 |
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| author | Xingshan Chang Jie Liu Xinping Yan Feng Sun Hanhua Zhu Chengmin Wang |
| author_facet | Xingshan Chang Jie Liu Xinping Yan Feng Sun Hanhua Zhu Chengmin Wang |
| author_sort | Xingshan Chang |
| collection | DOAJ |
| description | Effective control of the health operating condition of multi-support, ultra-long shaft system water-lubricated stern bearings is crucial for supporting the intelligent maintenance and health management of ships. This study investigates the failure modes of water-lubricated stern bearings and focuses on the critical failure modes of abnormal wear and high-temperature meltdown to analyze the mechanisms and influencing factors of these failures. It discusses the conditions for healthy operation of water-lubricated stern bearings, as well as methods for controlling lubrication and temperature rise. Based on this, controllable parameters for the healthy operation of water-lubricated stern bearings were selected, an experimental rig was constructed, and experiments were conducted using SF-2A material water-lubricated bearings. The experimental results indicate that by controlling parameters such as shaft rotational speed, inlet lubrication water temperature, clear-water lubrication, sediment-laden-water lubrication, bearing specific pressure, and the surface morphology of the bearing liner, the velocity characteristics, lubrication characteristics, and temperature rise characteristics of the bearings can be effectively altered. The sensitivity of the lubrication and temperature rise characteristics of SF-2A material water-lubricated stern bearings to controllable parameters varies under different environmental conditions. The study finds that precise control of these parameters can improve the operating condition and reliability of water-lubricated bearings. |
| format | Article |
| id | doaj-art-0ce1569d9e2b4a9f9684711863c3954c |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-0ce1569d9e2b4a9f9684711863c3954c2025-01-24T13:36:32ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-12-011311410.3390/jmse13010014Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of ShipsXingshan Chang0Jie Liu1Xinping Yan2Feng Sun3Hanhua Zhu4Chengmin Wang5State Key Laboratory of Maritime Technology and Safety, Wuhan University of Technology, Wuhan 430063, ChinaSchool of Naval Architecture Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, ChinaState Key Laboratory of Maritime Technology and Safety, Wuhan University of Technology, Wuhan 430063, ChinaChina Ship Development and Design Center, Wuhan 430064, ChinaSchool of Naval Architecture Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, ChinaSchool of Naval Architecture Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, ChinaEffective control of the health operating condition of multi-support, ultra-long shaft system water-lubricated stern bearings is crucial for supporting the intelligent maintenance and health management of ships. This study investigates the failure modes of water-lubricated stern bearings and focuses on the critical failure modes of abnormal wear and high-temperature meltdown to analyze the mechanisms and influencing factors of these failures. It discusses the conditions for healthy operation of water-lubricated stern bearings, as well as methods for controlling lubrication and temperature rise. Based on this, controllable parameters for the healthy operation of water-lubricated stern bearings were selected, an experimental rig was constructed, and experiments were conducted using SF-2A material water-lubricated bearings. The experimental results indicate that by controlling parameters such as shaft rotational speed, inlet lubrication water temperature, clear-water lubrication, sediment-laden-water lubrication, bearing specific pressure, and the surface morphology of the bearing liner, the velocity characteristics, lubrication characteristics, and temperature rise characteristics of the bearings can be effectively altered. The sensitivity of the lubrication and temperature rise characteristics of SF-2A material water-lubricated stern bearings to controllable parameters varies under different environmental conditions. The study finds that precise control of these parameters can improve the operating condition and reliability of water-lubricated bearings.https://www.mdpi.com/2077-1312/13/1/14SF-2A material water-lubricated stern bearingshealth status adjustable parameterslubrication characteristicstemperature rise characteristicssurface morphology |
| spellingShingle | Xingshan Chang Jie Liu Xinping Yan Feng Sun Hanhua Zhu Chengmin Wang Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Ships Journal of Marine Science and Engineering SF-2A material water-lubricated stern bearings health status adjustable parameters lubrication characteristics temperature rise characteristics surface morphology |
| title | Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Ships |
| title_full | Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Ships |
| title_fullStr | Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Ships |
| title_full_unstemmed | Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Ships |
| title_short | Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF-2A Material Water-Lubricated Stern Bearing in Multi-Point Ultra-Long Shaft Systems of Ships |
| title_sort | experimental study on the effects of controllable parameters on the healthy operation of sf 2a material water lubricated stern bearing in multi point ultra long shaft systems of ships |
| topic | SF-2A material water-lubricated stern bearings health status adjustable parameters lubrication characteristics temperature rise characteristics surface morphology |
| url | https://www.mdpi.com/2077-1312/13/1/14 |
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