Film thickness fluctuations in time-varying normal loading of rolling elastohydrodynamically lubricated contacts-Reference-Cited by-同舟云学术

Film thickness fluctuations in time-varying normal loading of rolling elastohydrodynamically lubricated contacts

Published:2010-03-19 Issue:12 Volume:224 Page:2559-2567
ISSN:0954-4062
Container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Author:

Félix-Quiñonez A¹,Morales-Espejel G E¹²

Affiliation:

1. Department of Tribology and Lubrication, SKF Engineering and Research Center, Nieuwegein, The Netherlands

2. Université de Lyon, INSA de Lyon CNRS, LaMCoS, France

Abstract

A simplified semi-analytical solution for the film thickness fluctuations in the normal-approach problem of elastohydrodynamic lubrication (EHL) contacts has been obtained. The model is based on an inlet analysis to include squeeze-film effects together with the variation of lubricant entrainment speed that is induced by the changes of contact radius as the load oscillates. The results obtained are in excellent agreement with numerical solutions and suggest that the fluctuations in entrainment speed are the main cause for the observed film modulations. The modified semi-analytical solution seems applicable in many practical cases. The amplitude of the film thickness fluctuations produced by fluctuations in the load is in this way related to a single parameter.

Publisher

SAGE Publications

Subject

Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1243/09544062JMES1966

Reference20 articles.

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2. Squeeze and Entraining Motion in Nonconformal Line Contacts. Part II—Elastohydrodynamic Lubrication

3. Multigrid techniques: A fast and efficient method for the numerical simulation of elastohydrodynamically lubricated point contact problems

4. Transient elastohydrodynamic analysis of elliptical contacts. Part 1: Isothermal and Newtonian lubricant solution

5. Transient elastohydrodynamic analysis of elliptical contacts. Part 2: Thermal and Newtonian lubricant solution

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