Elastohydrodynamic film thickness of soft EHL contacts using optical interferometry
Author(s)
Marx, N
Guegan, J
Spikes, HA
Type
Journal Article
Abstract
Robust, chromium, semi-reflective coatings have been applied to transparent polymethylmethacrylate and polyurethane discs and this has enabled conventional, normal incidence optical interferometry to be used to measure lubricant film thickness in soft EHL conditions for the first time. High quality interferograms comparable to those obtained from coated glass discs are obtained. Measured film thickness has been compared with existing soft EHL film thickness equations obtained using computer modelling and revised central and minimum film thickness equations have been proposed. These film thickness measurements and measurement technique have applicability to our understanding of the performance and design of lubricated gears and bearings manufactured from polymeric materials.
Date Issued
2016-03-26
Date Acceptance
2016-03-19
Citation
Tribology International, 2016, 99, pp.267-277
ISSN
1879-2464
Publisher
Elsevier
Start Page
267
End Page
277
Journal / Book Title
Tribology International
Volume
99
Copyright Statement
© 2016 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Shell Research Limited
Shell Research Limited
Grant Number
PT36160 - PO 4550096336
PT22478 - PO 4550059303
Subjects
Mechanical Engineering & Transports
0913 Mechanical Engineering
Publication Status
Published