Pressure-viscosity relationships for elastohydrodynamics

被引：95
|
作者：
Bair, S [1 ]
Kottke, P [1 ]
机构：
[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Ctr High Pressure Rheol, Atlanta, GA 30332 USA
来源：
TRIBOLOGY TRANSACTIONS | 2003年 / 46卷 / 03期
关键词：
D O I：
10.1080/10402000308982628
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The numerical simulation of elastohydrodynamic lubrication has evolved in terms of solution detail, speed and robustness. However, if EHL is to begin to solve practical quantitative problems involving differences among lubricants, practitioners must begin to utilize pressure-viscosity relationships in their numerical schemes that can describe real liquid response. The authors begin with the simple empiricisms that can be used to describe the pressure-viscosity response piecewise over the entire range from ambient to glass transition. Then various free volume formulations are introduced and compared. Finally, empirical expressions that can describe some essential features over the entire pressure range are presented. An example of the utility of one empirical equation is offered.
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页码：289 / 295
页数：7
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