{"title":"微纹理静压支撑极端工作条件下间隙油膜润滑性能的模拟研究","authors":"Yanan Feng, Xiaodong Yu, Hui Jiang, Ruichun Dai, Wentao Jia, Junfeng Wang, Jianhua Jiao","doi":"10.1002/ls.1697","DOIUrl":null,"url":null,"abstract":"<p>Based on the theory of fluid mechanics, the lubrication performance of micro-textured hydrostatic bearings is derived. Under extreme operating conditions, the lubrication performance of clearance oil film without micro-texture and with rectangular and triangular micro-textures added to the oil sealing edge is simulated, and the experimental verification of the lubrication performance of the double rectangular cavity without micro-texture is conducted. The results show that regardless of whether micro-texture is added or not, the oil film pressure is distributed in a stepped shape, and the highest temperature of the oil film occurs at the intersection of the oil sealing edges on the outside of the double rectangular cavity. When the maximum depth of triangular micro-texture is 1.5 mm and the dimension of a segment is 1 mm, triangular micro-texture with an obtuse angle of 103° has the best comprehensive lubrication performance, but its oil film bearing capacity still does not exceed that of rectangular micro-texture.</p>","PeriodicalId":18114,"journal":{"name":"Lubrication Science","volume":"36 5","pages":"356-369"},"PeriodicalIF":1.8000,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Simulation study on the performance of gap oil film lubrication under extreme working conditions of micro-textured hydrostatic support\",\"authors\":\"Yanan Feng, Xiaodong Yu, Hui Jiang, Ruichun Dai, Wentao Jia, Junfeng Wang, Jianhua Jiao\",\"doi\":\"10.1002/ls.1697\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Based on the theory of fluid mechanics, the lubrication performance of micro-textured hydrostatic bearings is derived. Under extreme operating conditions, the lubrication performance of clearance oil film without micro-texture and with rectangular and triangular micro-textures added to the oil sealing edge is simulated, and the experimental verification of the lubrication performance of the double rectangular cavity without micro-texture is conducted. The results show that regardless of whether micro-texture is added or not, the oil film pressure is distributed in a stepped shape, and the highest temperature of the oil film occurs at the intersection of the oil sealing edges on the outside of the double rectangular cavity. When the maximum depth of triangular micro-texture is 1.5 mm and the dimension of a segment is 1 mm, triangular micro-texture with an obtuse angle of 103° has the best comprehensive lubrication performance, but its oil film bearing capacity still does not exceed that of rectangular micro-texture.</p>\",\"PeriodicalId\":18114,\"journal\":{\"name\":\"Lubrication Science\",\"volume\":\"36 5\",\"pages\":\"356-369\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-02-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Lubrication Science\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/ls.1697\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lubrication Science","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ls.1697","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Simulation study on the performance of gap oil film lubrication under extreme working conditions of micro-textured hydrostatic support
Based on the theory of fluid mechanics, the lubrication performance of micro-textured hydrostatic bearings is derived. Under extreme operating conditions, the lubrication performance of clearance oil film without micro-texture and with rectangular and triangular micro-textures added to the oil sealing edge is simulated, and the experimental verification of the lubrication performance of the double rectangular cavity without micro-texture is conducted. The results show that regardless of whether micro-texture is added or not, the oil film pressure is distributed in a stepped shape, and the highest temperature of the oil film occurs at the intersection of the oil sealing edges on the outside of the double rectangular cavity. When the maximum depth of triangular micro-texture is 1.5 mm and the dimension of a segment is 1 mm, triangular micro-texture with an obtuse angle of 103° has the best comprehensive lubrication performance, but its oil film bearing capacity still does not exceed that of rectangular micro-texture.
期刊介绍:
Lubrication Science is devoted to high-quality research which notably advances fundamental and applied aspects of the science and technology related to lubrication. It publishes research articles, short communications and reviews which demonstrate novelty and cutting edge science in the field, aiming to become a key specialised venue for communicating advances in lubrication research and development.
Lubrication is a diverse discipline ranging from lubrication concepts in industrial and automotive engineering, solid-state and gas lubrication, micro & nanolubrication phenomena, to lubrication in biological systems. To investigate these areas the scope of the journal encourages fundamental and application-based studies on:
Synthesis, chemistry and the broader development of high-performing and environmentally adapted lubricants and additives.
State of the art analytical tools and characterisation of lubricants, lubricated surfaces and interfaces.
Solid lubricants, self-lubricating coatings and composites, lubricating nanoparticles.
Gas lubrication.
Extreme-conditions lubrication.
Green-lubrication technology and lubricants.
Tribochemistry and tribocorrosion of environment- and lubricant-interface interactions.
Modelling of lubrication mechanisms and interface phenomena on different scales: from atomic and molecular to mezzo and structural.
Modelling hydrodynamic and thin film lubrication.
All lubrication related aspects of nanotribology.
Surface-lubricant interface interactions and phenomena: wetting, adhesion and adsorption.
Bio-lubrication, bio-lubricants and lubricated biological systems.
Other novel and cutting-edge aspects of lubrication in all lubrication regimes.