中国机械工程2024，Vol.35Issue(9)：1567-1574,8.DOI:10.3969/j.issn.1004-132X.2024.09.006
载荷对油膜界面滑移及弹流润滑特性的影响研究
Study on Influences of Load on Oil Film Interface Slip and Elastohydrodynamic Lubrication Characteristics
摘要
Abstract
In order to explore formation and evolution mechanism of lubrication failure of friction pair in mechanical transmission system under harsh working conditions,a point contact elastohydro-dynamic lubrication model was established considering oil film interface slip,and simulation calcula-tion was carried out.The two-color light interference elastohydrodynamic lubrication test was carried out to study the influences of load on oil film interface slip in elastohydrodynamic lubrication,and then variation characteristics of entrainment velocity,hydrodynamic pressure,oil film thickness and slip parameters with load were studied under interface slip state.The results show that with the in-crease of load,the slip amplitude and slip range of interface increase significantly and the entrainment velocity in slip region decreases obviously.The dynamic pressure distribution in slip region tends to be uniform.In addition,slip region produces film thickness accumulation and inlet depression character-istics.The shape of slip region gradually presents the characteristics of"half crescent".关键词
界面滑移/点接触/弹流润滑/极限剪切力/滑移长度Key words
interface slip/point contact/elastohydrodynamic lubrication/ultimate shear force/slip length分类
交通工程引用本文复制引用
郭闯,赵二辉,权龙,汪成文..载荷对油膜界面滑移及弹流润滑特性的影响研究[J].中国机械工程,2024,35(9):1567-1574,8.基金项目
国家自然科学基金(52005359) （52005359）
中国博士后科学基金(2019M661062) （2019M661062）
山西省青年科学基金(201901D211021) （201901D211021）
