Lubrication in soft rough contacts: A novel homogenized approach. Part I - Theory

被引：59

作者：

Scaraggi, Michele ^{[1
,2
]}

Carbone, Giuseppe ^{[1
]}

Persson, Bo N. J. ^{[3
]}

Dini, Daniele ^{[2
]}

机构：

[1] Politecn Bari, DIMeG, I-70126 Bari, Italy

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

[3] FZ Julich, IFF, D-52425 Julich, Germany

来源：

SOFT MATTER | 2011年 / 7卷 / 21期

基金：

英国工程与自然科学研究理事会;

关键词：

AVERAGE FLOW MODEL; ELASTIC-DEFORMATION; SURFACE-ROUGHNESS; REYNOLDS-EQUATION; RAPID CALCULATION; RUBBER-FRICTION; MECHANICS; CLEARANCES; PRESSURES;

D O I：

10.1039/c1sm05128h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We study the lubricated steady sliding contact between rough surfaces of (elastically) soft solids. A novel mean field theory of mixed lubrication is presented, which takes into account the coupled effect of asperity-asperity and asperity-fluid interactions. We calculate the fluid flow factors, and discuss the nature of the transition from the boundary lubrication regime, where the normal load is supported by the asperity-asperity interactions (sometimes mediated by boundary films), to the hydrodynamic regime, where a thin fluid film prevents direct contact between the mating surfaces.

引用

页码：10395 / 10406

页数：12

共 49 条

[1] The homogenization process of the Reynolds equation describing compressible liquid flow [J].