A NEW HIGH-PRESSURE, HIGH-SHEAR STRESS VISCOMETER AND RESULTS FOR LUBRICANTS

被引:43
作者
BAIR, S
WINER, WO
机构
[1] George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA
来源
TRIBOLOGY TRANSACTIONS | 1993年 / 36卷 / 04期
关键词
D O I
10.1080/10402009308983216
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A new high-pressure, high-shear stress viscometer has been developed with a pressure capability of 300 MPa and shear stress Of 26 MPa for shear which is essentially isothermal in the context of the rheological characterization of shear-thinning lubricants. Four liquid lubricants have been investigated. Newtonian and rate-independent behavior were observed, and it appears that molecular weight may have a role in the transition region between Newtonian and rate-independent behavior. The results are applicable to lubricants used in both elastohydrodynamic contacts and severe full-film conditions in journal bearings.
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页码:721 / 725
页数:5
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