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Influence of structural parameters of friction pair on oil temperature rise in hydro-viscous clutch

Zhibao Li (School of Materials Science and Engineering, Jiangsu University, Zhenjiang, China)
Fangwei Xie (School of Mechanical Engineering, Jiangsu University, Zhenjiang, China and The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, China)
Junyu Sun (School of Mechanical Engineering, Jiangsu University, Zhenjiang, China)
Jie Zhu (School of Mechanical Engineering, Jiangsu University, Zhenjiang, China)
Xudong Zheng (School of Mechanical Engineering, Jiangsu University, Zhenjiang, China)
Xinjian Guo (School of Mechanical Engineering, Jiangsu University, Zhenjiang, China)
Yun Wang (School of Mechanical Engineering, Jiangsu University, Zhenjiang, China)
Yinqun Hua (School of Materials Science and Engineering, Jiangsu University, Zhenjiang, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 26 September 2019

Issue publication date: 14 January 2020

118

Abstract

Purpose

The purpose of this paper is to study the temperature characteristics of hydro-viscous clutch with different structure of friction disks and obtain the distribution of film temperature.

Design/methodology/approach

The mathematical model of oil film between friction disks with radial grooves is established. Based on the flow rate equation, the temperature rise equation of oil film is deduced. Considering two-phase flow, the temperature distribution in the oil shear stage and the effects of the ratio of inner radius to outer radius on film temperature rise is studied by using computational fluid dynamics (CFD) technology.

Findings

The results show that when input speed is constant, the increase in the ratio of inner to outer radius leads to an increase in the peak temperature and the decrease in the ratio results in a larger increasing rate of temperature.

Originality/value

These results are of interest for the study of hydro-viscous drive and its applications. This study can also provide a theoretical basis for the mechanism of temperature rise by considering the effect of two-phase flow.

Keywords

Acknowledgements

The authors would like to acknowledge the support of the National Natural Science Foundation of China (51675234, 51575245, U1810123) and Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems of Zhejiang University (GZKF-201717).

Citation

Li, Z., Xie, F., Sun, J., Zhu, J., Zheng, X., Guo, X., Wang, Y. and Hua, Y. (2020), "Influence of structural parameters of friction pair on oil temperature rise in hydro-viscous clutch", Industrial Lubrication and Tribology, Vol. 72 No. 1, pp. 79-85. https://doi.org/10.1108/ILT-11-2018-0428

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited

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