全膜润滑到边界润滑的过渡研究  

Study of Transition from Full-film to Boundary Lubrication

作　　者：王文中[1] 王顺[1] 胡元中[1] 王慧[1] 

机构地区：[1]清华大学摩擦学国家重点实验室,北京100084

出　　处：《润滑与密封》2006年第9期32-35,共4页Lubrication Engineering

基　　金：中国博士后基金(2004035312);清华-中大博士后基金资助

摘　　要：摩擦副在工作中经历不同的润滑状态,利用数值模拟的方法研究了从全膜润滑到边界润滑的过渡。数值实验显示,从全膜到边界润滑是个光滑的过渡过程。对于光滑表面,在较低速度下过渡到混合润滑;而对于粗糙表面,全膜到混合润滑的过渡发生在较高速度下。Tribological couples always experience different lubrication regimes. The transition from full-film elastohydrodynamic lubrication（EHL） down to boundary lubrication was studied through numerical simulation. The numerical experiments show it is a smooth process from full-film to boundary lubrication. For smooth surface, mixed lubrication occurs at low speed, however,for rough surface, it occurs at much high speed.

关 键 词：全膜弹流润滑 混合润滑 数值模拟 粗糙表面 

分 类 号：TH165.3[机械工程—机械制造及自动化]