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Effect of large-area texture/slip surface on journal bearing considering cavitation

Qiyin Lin (State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China.)
Zhengying Wei (State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China.)
Ning Wang (State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China.)
Wei Chen (State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China.)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 13 April 2015

Abstract

Purpose

The purpose of this paper is to study the influence of large-area texture/slip surface, especially the area and position of large-area texture surface on journal bearing, and improve the tribological performances of journal bearing.

Design/methodology/approach

A modified texture/slip numerical boundary condition with double parameters is presented and is applied onto the region where surface textures locate to represent the impact of actual texture/slip surface. A phase change condition is used to analyze cavitation phenomena.

Findings

The global/cumulative texture effect can be represented by applying texture/slip condition onto the region where it locates. The area and position of texture/slip surface would significantly affect the cavitation and load-carrying capacity. Texture/slip surface would not affect the pressure and load-carrying capacity when it locates at cavitation zone. The effect of texture/slip surface on load-carrying capacity would be beneficial if it locates at the pressure rise region, but its effect would be adverse if it locates at the pressure drop region. Well-designed texture/slip surface can improve tribological performances.

Originality/value

The developed texture/slip boundary condition can be a suitable and useful tool to analyze the effect of large-area texture/slip surface and especially to optimize the area and position of large-area texture surface. This approach can be complementary to conventional approach which is used to analyze the influence of textures’ real configurations and parameters.

Keywords

Acknowledgements

The work is financially supported by the National Key Basic Research Program of China (No. 2009CB724404).

Citation

Lin, Q., Wei, Z., Wang, N. and Chen, W. (2015), "Effect of large-area texture/slip surface on journal bearing considering cavitation", Industrial Lubrication and Tribology, Vol. 67 No. 3, pp. 216-226. https://doi.org/10.1108/ILT-05-2013-0055

Publisher

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Emerald Group Publishing Limited

Copyright © 2015, Emerald Group Publishing Limited