Effect of Elliptical Dimples on Hydrodynamic Lubrication

Jing Hu Ji; Hao Wang; Yong Hong Fu

doi:10.4028/www.scientific.net/KEM.645-646.474

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 645-646Effect of Elliptical Dimples on Hydrodynamic...

Effect of Elliptical Dimples on Hydrodynamic Lubrication

Abstract:

This paper develops an analytical model to investigate the effect of elliptical dimples on hydrodynamic lubrication of surface contact. The hydrodynamic pressure generated by elliptical dimples is solved by the multi-grid method. The evaluation criterion of hydrodynamic effect of dimensionless average pressure is calculated and presented with the variation of elliptical dimple depth, area density, slender ratio and inclination angle. The results indicate that geometrical parameters of elliptical dimples have an obvious influence on the hydrodynamic pressure. The hydrodynamic lubrication performance can be ameliorated by optimizing the geometrical parameters of elliptical dimples according to the operating parameters of the mechanical components.

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Periodical:

Key Engineering Materials (Volumes 645-646)

Pages:

474-479

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.645-646.474

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Online since:

May 2015

Authors:

Jing Hu Ji*, Hao Wang, Yong Hong Fu

Keywords:

Elliptical Dimple, Hydrodynamic Lubrication, Inclination Angle, Slender Ratio, Surface Texturing

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