Study on effect of dimples on friction of parallel surfaces under different sliding conditions

被引：98

作者：

Meng, Fanming ^{[1
,2
]}

Zhou, Rui ^{[1
]}

Davis, Tiffany ^{[1
]}

Cao, Jian ^{[1
]}

Wang, Q. Jane ^{[1
]}

Hua, Diann ^{[3
]}

Liu, Jordan ^{[3
]}

机构：

[1] Northwestern Univ, Ctr Surface Engn & Tribol, Evanston, IL 60208 USA

[2] Chongqing Univ, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China

[3] Caterpillar Inc, Prod Dev Ctr Excellence, Adv Mat Technol Div, Peoria, IL 61656 USA

来源：

APPLIED SURFACE SCIENCE | 2010年 / 256卷 / 09期

基金：

美国国家科学基金会;

关键词：

Friction coefficient; Friction force; Dimple; Parallel surfaces; Lubrication; CC-FFT; CONFORMAL-CONTACT LUBRICATION; MICRO-TEXTURES;

D O I：

10.1016/j.apsusc.2009.11.041

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：

The influence of rectangle dimples with flat bottom on the friction of parallel surfaces at different sliding conditions is investigated based on lubrication equations. The elastic deformation of rough surfaces is evaluated using continuous convolution fast Fourier transform (CC-FFT). The friction coefficients for dimpled and non-dimpled parallel surfaces by simulation are compared with experimental results. Results show that this kind of dimples can reduce the friction coefficient for cases with the smaller ratio of film thickness to roughness (h/R-q), small roughness or large applied load. The friction force for the parallel surfaces can decrease due to the dimple effect over the range of the larger sliding speed, larger load or smoother surfaces. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：2863 / 2875

页数：13

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