Lubricant film thickness and friction force measurements in a laser surface textured reciprocating line contact simulating the piston ring–liner pairing

Applying surface texture to piston liners may provide an effective means of controlling friction and hence improving engine efficiency. However, little is understood about the mechanisms by which pockets affect friction, primarily because of a lack of reliable experimental measurements. To address t...

Full description

Saved in:
Bibliographic Details
Published in:Tribology international 2016-06, Vol.98, p.317-329
Main Authors: Vlădescu, Sorin-Cristian, Medina, Simon, Olver, Andrew V., Pegg, Ian G., Reddyhoff, Tom
Format: Article
Language:English
Subjects:
Film thickness
Friction
Lubrication
Optical interferometry
Piston rings
Pistons
Pocket
Surface layer
Surface texture
Texture
Thickness
Thin film lubrication
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Applying surface texture to piston liners may provide an effective means of controlling friction and hence improving engine efficiency. However, little is understood about the mechanisms by which pockets affect friction, primarily because of a lack of reliable experimental measurements. To address this, the influence of surface texture on film thickness and friction force was measured simultaneously in a convergent-divergent bearing, under conditions that closely replicate an automotive piston ring-liner conjunction. Film thicknesses were measured using a modified version of the ultra-thin film optical interferometry approach, enabling film thicknesses
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2016.02.026