Elastohydrodynamic film forming with shear thinning liquids

被引：32

作者：

Bair, S ^{[1
]}

机构：

[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30335 USA

来源：

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME | 1998年 / 120卷 / 02期

关键词：

D O I：

10.1115/1.2834405

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Recent advances in high pressure rheometry have elucidated the shear response of liquid lubricants at the high shear stress characteristic of the traction generating region of lubricated concentrated contacts. These new measurement techniques ale used to characterize the shear response of shear thinning liquids at low (<10 MPa) shear stress. A recently developed numerical scheme for calculating film thickness is extended to accommodate sliding. Film thickness predictions are compared with measurements using shear thinning liquids including a polymer/mineral oil blend, a highly elastic liquid, and synthetic base oils. Useful insights are provided concerning the effects of pressure-viscosity behavior for Newtonian liquids, sliding, and starvation for non-Newtonian liquids and the relevant shear stress for film forming.

引用

页码：173 / 178

页数：6

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