A simplified approach to the prediction of mixed and boundary friction

被引：8
|
作者：
Taylor, R., I [1 ]
Sherrington, I [1 ]
机构：
[1] Univ Cent Lancashire, Jost Inst Tribotechnol, Preston PR1 2HE, Lancs, England
来源：
TRIBOLOGY INTERNATIONAL | 2022年 / 175卷
关键词：
Mixed Lubrication; Boundary Lubrication; Friction; CONTACT; LUBRICATION; MODEL; SURFACES;
D O I：
10.1016/j.triboint.2022.107836
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Improving machine energy efficiency has led to the use of lower viscosity lubricants, and a greater chance of mixed/boundary contact occurring. A new equation, derived from experimental data, is proposed that enables simple calculation of the proportion of mixed/boundary friction in a contact, as a function of the lambda ratio. It is also shown that some commonly used rough surface contact models (such as the Greenwood Tripp model) significantly underestimate mixed/boundary friction in the range 1 < lambda < 3. The new model has the form of an S-curve, which suggests a new approach to rough surface contact modelling is to treat it as a growth/decay process, and the consequences of this approach are discussed
引用
收藏
页数：11
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