Piezoviscous Effects in Nonconformal Contacts Lubricated Hydrodynamically
作者:
Yeau-Ren Jeng,
BernardJ. Hamrock,
DavidE. Brewe,
期刊:
A S L E Transactions
(Taylor Available online 1986)
卷期:
Volume 30,
issue 4
页码: 452-464
ISSN:0569-8197
年代: 1986
DOI:10.1080/05698198708981779
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The analysis in this Paper is concerned with the piezoviscous-rigid regime of lubrication for the general case of elliptical contacts. In this regime, several, formulas of the lubricant film thickness have been proposed. However, either the load parameter W is not included, which has a strong effect on film thickness, or the film thickness is overestimated by using the Barus formula for pressure viscosity characteristics. In the current study, the Roelands formula has been used for the pressure-viscosity relationship. The effects of the dimensionless load, speed, and materials parameters, the radius ratio, and the lubricant entrainment direction have been investigated. Forty-one cases were used in obtaining the minimum film thickness formula: H0= 178G0.386U1.266W−0.880(1 − e−0.0387αContour Plots indicate in detail the pressure developed between the contacting solids.Presented at the 40th Annual Meeting in Las Vegas, Nevada May 6—9, 1985
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