Experimental study on the friction stability of paper-based clutches concerning groove patterns

Liang Yu (School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China)
Biao Ma (School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China)
Man Chen (School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China)
He Yan Li (College of Urban Transportation and Logistics, Shenzhen Technology University, Shenzhen, China)
Jikai Liu (Institute of Microelectronics of Chinese Academy of Sciences, Beijing, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Publication date: 29 July 2019

Abstract

Purpose

This paper aims to study and compare the friction stability of wet paper-based clutches with regard to the radial grooves (RG) and waffle grooves (WG).

Design/methodology/approach

This paper presents an experimental study of a wet clutch concerning the effect of groove patterns on the friction torque and surface temperature. The friction stabilities of RG and WG are investigated with the applied pressure, rotating speed and automatic transmission fluid (ATF) temperature taken into consideration.

Findings

The friction torque and surface temperature of WG are larger than those of RG under the same operating condition. The friction torque difference between RG and WG grows with the increase of applied pressure and narrows with the increase of ATF temperature. Additionally, their temperature difference expands via increasing the rotating speed and ATF temperature or reducing the applied pressure; in this way, not only the variable coefficient difference between RG and WG can be narrowed, but also the friction stability of the clutch can be improved dramatically.

Originality/value

This paper explains the thermodynamic differences between RG and WG; moreover, it is verified experimentally that WG has a better friction stability than RG.

Keywords

Citation

Yu, L., Ma, B., Chen, M., Li, H.Y. and Liu, J. (2019), "Experimental study on the friction stability of paper-based clutches concerning groove patterns", Industrial Lubrication and Tribology, Vol. 72 No. 4, pp. 541-548. https://doi.org/10.1108/ILT-03-2019-0098

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited

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