{"title":"气缸表面微凸体往复活塞密封的弹流力学分析","authors":"Zhang Shouyuan","doi":"10.1080/17515831.2020.1730128","DOIUrl":null,"url":null,"abstract":"ABSTRACT The reciprocating piston seals are crucial parts in the hydraulic system, which are widely used in aerospace and military industry. A direct fluid–structure coupling method with high efficiency is proposed for solving the transient elaso-hydrodynamic-lubrication problem in the hydropneumatic suspension reciprocating piston seal system. A detailed three-dimensional fluid–structure coupling model is built using finite element discretization. Material tests are carried out to obtain the parameters of the third-order Ogden constitutive model of the rubber O-ring. The sealing performance and friction force of the sealing system are analysed for different piston speed. The critical speed from mixed lubrication to full-film lubrication is obtained. Three different micro-asperity geometries on cylinder surface are researched for their influence on piston sealing and lubrication performance.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2020-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2020.1730128","citationCount":"1","resultStr":"{\"title\":\"Elasto-hydrodynamic analysis of reciprocating piston seals with micro-asperities on cylinder surface\",\"authors\":\"Zhang Shouyuan\",\"doi\":\"10.1080/17515831.2020.1730128\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT The reciprocating piston seals are crucial parts in the hydraulic system, which are widely used in aerospace and military industry. A direct fluid–structure coupling method with high efficiency is proposed for solving the transient elaso-hydrodynamic-lubrication problem in the hydropneumatic suspension reciprocating piston seal system. A detailed three-dimensional fluid–structure coupling model is built using finite element discretization. Material tests are carried out to obtain the parameters of the third-order Ogden constitutive model of the rubber O-ring. The sealing performance and friction force of the sealing system are analysed for different piston speed. The critical speed from mixed lubrication to full-film lubrication is obtained. Three different micro-asperity geometries on cylinder surface are researched for their influence on piston sealing and lubrication performance.\",\"PeriodicalId\":23331,\"journal\":{\"name\":\"Tribology - Materials, Surfaces & Interfaces\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2020-03-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1080/17515831.2020.1730128\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tribology - Materials, Surfaces & Interfaces\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/17515831.2020.1730128\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, COATINGS & FILMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tribology - Materials, Surfaces & Interfaces","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/17515831.2020.1730128","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
Elasto-hydrodynamic analysis of reciprocating piston seals with micro-asperities on cylinder surface
ABSTRACT The reciprocating piston seals are crucial parts in the hydraulic system, which are widely used in aerospace and military industry. A direct fluid–structure coupling method with high efficiency is proposed for solving the transient elaso-hydrodynamic-lubrication problem in the hydropneumatic suspension reciprocating piston seal system. A detailed three-dimensional fluid–structure coupling model is built using finite element discretization. Material tests are carried out to obtain the parameters of the third-order Ogden constitutive model of the rubber O-ring. The sealing performance and friction force of the sealing system are analysed for different piston speed. The critical speed from mixed lubrication to full-film lubrication is obtained. Three different micro-asperity geometries on cylinder surface are researched for their influence on piston sealing and lubrication performance.