Xinbin Li , Yajun Xu , Jing Liu , Yu Zhang , Jianyu Liu , Guang Pan , Zhifeng Shi
{"title":"考虑外环动态错位的推进轴系统振动分析","authors":"Xinbin Li , Yajun Xu , Jing Liu , Yu Zhang , Jianyu Liu , Guang Pan , Zhifeng Shi","doi":"10.1016/j.jsv.2024.118612","DOIUrl":null,"url":null,"abstract":"<div><p>Propulsion shaft systems play a crucial role in marine applications, particularly in ships and underwater vehicles. However, existing research often overlooks the dynamics involved in the transmission of vibrations from the bearing to the housing and subsequently to the hull, which affects vibration control in marine equipment. Therefore, this study introduces an enhanced dynamic model for a propulsion shaft system, incorporating the dynamics of the bearing outer ring and housing. The proposed model deduces the deformation relationships between the ball and the inner/outer ring, considering the outer ring translation and swing. The contact force between the outer ring and bearing housing is calculated using conformal contact theory. Timoshenko beam theory is used to develop the shaft dynamic model, while the propeller, bearing components, and bearing housing are represented through the lumped parameter method. To validate the proposed model, an experiment is conducted, demonstrating its accuracy. The study provides analysis of the bearing contact force, shaft dynamics, and bearing housing dynamics. Additionally, the influence of bearing clearances on the shaft and bearing housing dynamics is investigated. The results show that controlling bearing #2 clearance to below 20 μm helps reduce the system vibrations.</p></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Vibration analysis of the propulsion shaft system considering dynamic misalignment in the outer ring\",\"authors\":\"Xinbin Li , Yajun Xu , Jing Liu , Yu Zhang , Jianyu Liu , Guang Pan , Zhifeng Shi\",\"doi\":\"10.1016/j.jsv.2024.118612\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Propulsion shaft systems play a crucial role in marine applications, particularly in ships and underwater vehicles. However, existing research often overlooks the dynamics involved in the transmission of vibrations from the bearing to the housing and subsequently to the hull, which affects vibration control in marine equipment. Therefore, this study introduces an enhanced dynamic model for a propulsion shaft system, incorporating the dynamics of the bearing outer ring and housing. The proposed model deduces the deformation relationships between the ball and the inner/outer ring, considering the outer ring translation and swing. The contact force between the outer ring and bearing housing is calculated using conformal contact theory. Timoshenko beam theory is used to develop the shaft dynamic model, while the propeller, bearing components, and bearing housing are represented through the lumped parameter method. To validate the proposed model, an experiment is conducted, demonstrating its accuracy. The study provides analysis of the bearing contact force, shaft dynamics, and bearing housing dynamics. Additionally, the influence of bearing clearances on the shaft and bearing housing dynamics is investigated. The results show that controlling bearing #2 clearance to below 20 μm helps reduce the system vibrations.</p></div>\",\"PeriodicalId\":17233,\"journal\":{\"name\":\"Journal of Sound and Vibration\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sound and Vibration\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022460X24003754\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ACOUSTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sound and Vibration","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022460X24003754","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}
Vibration analysis of the propulsion shaft system considering dynamic misalignment in the outer ring
Propulsion shaft systems play a crucial role in marine applications, particularly in ships and underwater vehicles. However, existing research often overlooks the dynamics involved in the transmission of vibrations from the bearing to the housing and subsequently to the hull, which affects vibration control in marine equipment. Therefore, this study introduces an enhanced dynamic model for a propulsion shaft system, incorporating the dynamics of the bearing outer ring and housing. The proposed model deduces the deformation relationships between the ball and the inner/outer ring, considering the outer ring translation and swing. The contact force between the outer ring and bearing housing is calculated using conformal contact theory. Timoshenko beam theory is used to develop the shaft dynamic model, while the propeller, bearing components, and bearing housing are represented through the lumped parameter method. To validate the proposed model, an experiment is conducted, demonstrating its accuracy. The study provides analysis of the bearing contact force, shaft dynamics, and bearing housing dynamics. Additionally, the influence of bearing clearances on the shaft and bearing housing dynamics is investigated. The results show that controlling bearing #2 clearance to below 20 μm helps reduce the system vibrations.
期刊介绍:
The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application.
JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.