The rheological assumptions of classical EHL: What went wrong?

被引：25

作者：

Bair, Scott ^{[1
]}

机构：

[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Ctr High Pressure Rheol, Atlanta, GA 30332 USA

来源：

TRIBOLOGY INTERNATIONAL | 2019年 / 131卷

关键词：

Classical EHL; Quantitative EHL; Rheology; Pathological science; ELASTOHYDRODYNAMIC LUBRICATION ANALYSIS; HIGH-PRESSURE RHEOLOGY; FILM THICKNESS; VISCOSITY; CONTACT; FRICTION;

D O I：

10.1016/j.triboint.2018.10.020

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The field of elastohydrodynamic lubrication (EHL) now has two very different approaches to the problem. For the first approach, two assumptions regarding the pressure, temperature and shear dependence of viscosity have been essential to the way that classical EHL developed over the last forty years. 1. The liquid in the inlet zone responds in Newtonian fashion. 2. The shear stress versus shear rate relationship of the liquid has the same form as the average shear stress versus average shear rate obtained from a traction curve. The new, quantitative, approach employs viscosities measured in instruments which do not rely upon these assumptions. There has been a rapid succession of advances in understanding of film forming and friction under the new approach.

引用

页码：45 / 50

页数：6

共 50 条

[1] SOME OBSERVATIONS IN HIGH-PRESSURE RHEOLOGY OF LUBRICANTS [J].