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Influence of interface slip on the surface frictional force of texturing sliding bearing

Yuanfang Zhao (School of Mechanical and Electrical Engineering, Henan University of Science and Technology, Luoyang, China)
Yang Jianxi (School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 23 August 2019

Abstract

Purpose

The purpose of this paper is to explore the sensitive parameters affecting the friction resistance of sliding bearings under different interface slip conditions and the influence of the texture position of circular pits on the friction force of sliding bearings.

Design/methodology/approach

Based on the mechanical equilibrium equation and Newton's viscous fluid mechanics formula and wedge oil film model, the calculation model of sliding bearing friction resistance under interface slip state is established, and the influence of interface slip on friction resistance under different slip conditions is analyzed by means of ANSYS. Friction simulation model of circular pit textured journal bearing under different interface slip conditions.

Findings

The friction resistance of bearings is mainly determined by journal linear velocity, oil film slip ratio, pressure of inlet and outlet of bearings, oil film thickness and bearing capacity. When both the upper and lower surfaces of the oil film slip, the friction resistance decreases significantly, which is only 4-17 per cent of that without slip. And the friction force of the texture model of circular pit at the exit is better than that at the entrance and the middle of the pit.

Originality/value

Relevant research results will lay a new theoretical foundation for friction reduction and optimization design of sliding bearings.

Keywords

Acknowledgements

The authors would like to acknowledge the support provided by Henan Province, high-performance bearing technology key laboratory development fund project “high-speed rotation under the lubricating oil film formation mechanism”, Project number: 2016ZCKF02.

Henan Province, high-performance bearing technology key laboratory development fund project “high-speed rotation under the lubricating oil film formation mechanism”, Project number: 2016ZCKF02.

Citation

Zhao, Y. and Jianxi, Y. (2019), "Influence of interface slip on the surface frictional force of texturing sliding bearing", Industrial Lubrication and Tribology, Vol. 72 No. 6, pp. 735-742. https://doi.org/10.1108/ILT-01-2018-0032

Publisher

:

Emerald Publishing Limited

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