Surface roughness effects in elastohydrodynamic lubrication line contacts using couple stress fluid-Reference-Cited by-同舟云学术

Surface roughness effects in elastohydrodynamic lubrication line contacts using couple stress fluid

Published:2008-02-01 Issue:2 Volume:222 Page:151-155
ISSN:1350-6501
Container-title:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

Author:

Saini P K¹,Kumar P¹,Tandon P²

Affiliation:

1. Department of Mechanical Engineering, National Institute of Technology Kurukshetra, Kurukshetra, Haryana, India

2. PDPM Indian Institute of Information Technology, Design and Manufacturing, Jabalpur, India

Abstract

The effect of couple stress fluids on elastohydrodynamic lubrication (EHL) behaviour in smooth as well as rough line contacts is investigated numerically at low speed-high load and high speed-low load conditions. A non-dimensional couple stress parameter represents the molecular length of the additives. The EHL characteristics computed for couple stress fluids are found to have strong dependence on couple stress parameter. Significant increase in minimum film thickness due to couple stress fluid is observed. Also, the surface roughness effects on EHL behaviour are influenced by couple stress fluid to an extent depending upon the speed-load conditions.

Publisher

SAGE Publications

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1243/13506501JET303

Reference11 articles.

1. Couple Stresses in Fluids

2. Elastohydrodynamic Lubrication Theory of Line Contacts: Couple Stress Fluid Model

3. Effect of surface roughness on the hydrodynamic lubrication of porous step-slider bearings with couple stress fluids

4. Optimum load capacity of a slider bearing lubricated by a fluid with couple stress

5. Thermal elastohydrodynamic lubrication characteristics of couple stress fluids in rolling/sliding line contacts

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4. Jacobian Free Newton-GMRES Method for Analysing Combined Effects of Surface Roughness and Couple Stress Character of Lubricant on EHL Line Contact;Proceedings of the Indian National Science Academy;2016-09-01

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