摘要
采用ＮＧＹ－２型纳米级膜厚测量仪，研究了润滑膜厚度与各工况因素之间的关系，分析了薄膜润滑的机理，探讨了膜厚、速度、润滑油粘度等各因素对弹流润滑与薄膜润滑之间转化的影响。
Thin film lubrication(TFL)is a lubrication regime between
elastohydrodynamic lubrication (EHL) and boundary lubrication, which has been the hot
research area in tribology recently. Since the film thickness in such regime ranges from several
to several tens of nanometers, the relation and difference between TFL and EHL becomes much
important for the understanding of the mechanism of TFL. The mechanism of the transition from
EHL to TFL was investigated. The film thickness with different lubricants, velocities, and loads
was measured. It was found that the variation of the film thickness in thin film lubrication is not
as same as that in elastohydrodynamic lubrication. With the decrease of velocity, a turning
point could be found to classify thin film lubrication from elastohydrodynamic lubrication. A thin
film lubrication model consisting of a fluid layer, an ordered liquid layer, and an adsorbed layer
was established. The functions of the various layers were discussed.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
1999年第1期72-77,共6页
Tribology
基金
国家自然科学基金
关键词
纳米级
薄膜润滑
润滑状态转化
弹流润滑
thin film
lubrication
nanometer scale
transition between lubrication regimes
