Engine Friction and Bearing Wear. III. The Role of Elasticity in Bearing Performance
作者:
E.H. Okrent,
期刊:
A S L E Transactions
(Taylor Available online 1964)
卷期:
Volume 7,
issue 2
页码: 147-152
ISSN:0569-8197
年代: 1964
DOI:10.1080/05698196408972044
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Oils containing polymers have been shown to give better bearing performance—lower friction and lower wear—than straight mineral oils of the same low-shear viscosity, in spite of their non-Newtonian character. This unexpected behavior has been investigated further in studies on solutions of different polymer types, using a range of molecular weights and concentrations for each type and blending all solutions to the same low shear viscosity. The viscosity and elasticity of these solutions were measured at different rates of shear in an ultrasonic crystal viscometer. The governing parameter controlling bearing performance appears to be the recoverable shear, which is related to the elastic modulus of the system. Polymer type, also appears to be important in determining the critical value of recoverable shear required for good bearing performance.Presented as an American Society of Lubrication Engineers paper at the Lubrication Conference held in Rochester, New York, October 15–17, 1963.
点击下载:
PDF (515KB)
返 回