The influence of transverse roughness in thin film, mixed elastohydrodynamic lubrication

被引：44

作者：

Choo, Jian Wen

Olver, Andrew V.

Spikes, Hugh A.

机构：

[1] PETRONAS Res & Sci Serv, Kajang 43000, Selangor, Malaysia

[2] Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, Tribol Sect, London SW7 2BX, England

来源：

TRIBOLOGY INTERNATIONAL | 2007年 / 40卷 / 02期

关键词：

elastohydrodynamic lubrication; mixed lubrication; micro-EHL; ultra-thin fluid films;

D O I：

10.1016/j.triboint.2005.10.009

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The Spacer Layer Imaging (SLIM) method has been used to investigate the influence of transverse roughness on the thickness and shape of elastohydrodynamic (EHD) films. The effects of entrainment speed and lubricant viscosity on film distribution are shown for three distinct asperity heights over a wide range of lambda ratio (ratio of lubricant film thickness, separating two contacting surfaces, to their combined RMS roughnesses). Subsequently, the behaviour of film distribution for a range of mixed rolling-sliding conditions is also studied for both thin and thick film conditions. This study provides an estimate of how and when transverse asperities decompress and an indication of conditions under which these asperities cease to affect lubricant film formation. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：220 / 232

页数：13

共 13 条

[1]

[Anonymous], 2003, LUBR SCI, DOI DOI 10.1002/LS.3010150303

[2] The development of a spacer layer imaging method (SLIM) for mapping elastohydrodynamic contacts [J].