Lubricant film thickness and friction force measurements in a laser surface textured reciprocating line contact simulating the piston ring-liner pairing
详细信息 查看全文
- 作者：Sorin-Cristian Vlădescua ; Simon Medinaa ; Andrew V. Olvera ; Ian G. Peggb ; Tom Reddyhoffa ; t.reddyhoff@imperial.ac.uk" class="auth_mail" title="E-mail the corresponding author
- 关键词：Surface texture ; Piston rings ; Optical interferometry ; Thin film lubrication
- 刊名：Tribology International
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：98
- 期：Complete
- 页码：317-329
- 全文大小：3294 K
文摘
- •
Under full film lubrication conditions, the effect of surface texture is shown to reduce film thickness, which causes an increase in lubricant shear rate and hence increases friction.
- •
Under mixed and boundary conditions, the effect of surface texture is shown to increase film thickness, causing a reduction in asperity contact and hence reduces friction. Although this film thickness increase is small (~28%), its effect on friction is significant (~41% in this study), due to steep gradient of the Stribeck curve in this regime.