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Frictional Performance of a Textured Surface with Elliptical Dimples: Geometric and Distribution Effects

Frictional Performance of a Textured Surface with Elliptical Dimples: Geometric and Distribution... Geometric and distribution effects of inclined dimples on the friction and wear performance of a textured surface were experimentally investigated. The frictional coefficients and face temperatures of four different kinds of elliptical surfaces were measured under various conditions of rotation speed, load, and viscosity. Experimental results showed that distribution parameters significantly affected frictional performance. From the experiments it was found that surfaces with double-row elliptical dimples have smaller frictional coefficients and lower face temperatures than that of the single-row elliptical dimples and had a 59% decrease in frictional coefficient and a 58% decrease in face temperature rise. This means that double-row elliptical dimples can lead to a more profound hydrodynamic effect as well as possess a lower chance of surface contact and wear. Moreover, a larger dimple diameter and slender ratio further improved the frictional performance of the textured surface with double-row elliptical dimples. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Tribology Transactions Taylor & Francis

Frictional Performance of a Textured Surface with Elliptical Dimples: Geometric and Distribution Effects

Tribology Transactions , Volume 57 (6): 7 – Nov 2, 2014
7 pages

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References (24)

Publisher
Taylor & Francis
Copyright
Copyright © Society of Tribologists and Lubrication Engineers
ISSN
1547-397X
eISSN
1040-2004
DOI
10.1080/10402004.2014.939317
Publisher site
See Article on Publisher Site

Abstract

Geometric and distribution effects of inclined dimples on the friction and wear performance of a textured surface were experimentally investigated. The frictional coefficients and face temperatures of four different kinds of elliptical surfaces were measured under various conditions of rotation speed, load, and viscosity. Experimental results showed that distribution parameters significantly affected frictional performance. From the experiments it was found that surfaces with double-row elliptical dimples have smaller frictional coefficients and lower face temperatures than that of the single-row elliptical dimples and had a 59% decrease in frictional coefficient and a 58% decrease in face temperature rise. This means that double-row elliptical dimples can lead to a more profound hydrodynamic effect as well as possess a lower chance of surface contact and wear. Moreover, a larger dimple diameter and slender ratio further improved the frictional performance of the textured surface with double-row elliptical dimples.

Journal

Tribology TransactionsTaylor & Francis

Published: Nov 2, 2014

Keywords: Elliptical Dimples; Distribution Effect; Frictional Performance; Wear

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