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Analysis of seepage and lubrication characteristics of bilayer porous bearing under mixed lubrication

Guotao Zhang (School of Mechanical Engineering, Anhui University of Technology, Maanshan, China and Zhejiang Institute of Advanced Materials, SHU, China)
Weijie Cai (School of Mechanical Engineering, Anhui University of Technology, Maanshan, China and Zhejiang Institute of Advanced Materials, SHU, China)
Xiaoyi Wang (School of Mechanical Engineering, Anhui University of Technology, Maanshan, China and Zhejiang Institute of Advanced Materials, SHU, China)
Junpeng Xu (School of Mechanical Engineering, Anhui University of Technology, Maanshan, China and Zhejiang Institute of Advanced Materials, SHU, China)
Yanguo Yin (Institute of Tribology, Hefei University of Technology, Hefei, China)
Xicheng Wei (School of Materials Science and Engineering, Shanghai University, Shanghai, China and Zhejiang Institute of Advanced Materials, SHU, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 16 August 2022

Issue publication date: 13 October 2022

152

Abstract

Purpose

The purpose of this paper is to put forward the lubrication model of oil bearing and enrich the design theory under the condition of mixed lubrication.

Design/methodology/approach

A mixed lubrication model of bilayer porous bearing is established. The effects of the working conditions on the lubrication performance and seepage behavior were analyzed.

Findings

Results show that the oil film pressure mainly occurs in the bearing convergence zone and contact pressure mainly occurs near the minimum film thickness. The oil infiltrates into the porous matrix in the contact area and precipitates out to the friction surface at the inlet of the contact area. The oil seepage velocity and dynamic pressure effect at the friction interface can be improved by reasonably matching the load and speed. With the decrease of the external load or increase of the rotating speed, the lubrication performance becomes well.

Originality/value

This study provides a reference for the design and application of oil bearing under harsh working conditions.

Keywords

Acknowledgements

The authors are very grateful for the support of the National Natural Science Foundation of China (52005005), Anhui Natural Science Foundation (1908085QE195).

Citation

Zhang, G., Cai, W., Wang, X., Xu, J., Yin, Y. and Wei, X. (2022), "Analysis of seepage and lubrication characteristics of bilayer porous bearing under mixed lubrication", Industrial Lubrication and Tribology, Vol. 74 No. 9, pp. 1074-1081. https://doi.org/10.1108/ILT-03-2022-0080

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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