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research-article

Steady-state Heat-flow Coupling Field of a High-power Magnetorheological Fluid Clutch Utilizing Liquid Cooling

[+] Author and Article Information
Daoming Wang

School of Mechanical Engineering, Hefei University of Technology, Hefei, 230009, China; School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, 221116, China
cumtcmeewdm@hotmail.com

Bin Zi

School of Mechanical Engineering, Hefei University of Technology, Hefei, 230009, China
binzi.cumt@163.com

Sen Qian

School of Mechanical Engineering, Hefei University of Technology, Hefei, 230009, China
qiansencumt@126.com

Jun Qian

School of Mechanical Engineering, Hefei University of Technology, Hefei, 230009, China
qianjun@hfut.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4037171 History: Received November 12, 2016; Revised June 20, 2017

Abstract

Compared with traditional speed regulation (SR) approaches like variable frequency and hydraulic coupling, magnetorheological clutch (MRC) provides a more superior solution for high-efficiency energy saving SR. However, recent developments have demonstrated that severe heating is an outstanding challenge for MRC especially in high-power applications. Among commonly-used cooling methods, liquid cooling offers a viable alternative for the problem. Aiming at pre-evaluating the cooling efficiency of a liquid-cooled MRC in high-power situations, this study introduces a heat-flow coupling simulation method. In this paper, theoretical basis for the simulation is presented firstly, which is followed by an illustration of the heat-flow coupling simulation. This paper details the simulation model establishment, finite element meshing, boundary conditions and simulation parameters. After the simulations, the results concerning the steady-state flow field of the internal coolant, along with the steady-state temperature fields of MRC, MR fluids and the coolant are presented and discussed. Finally, several heating tests of an MRC prototype under various operation conditions are performed and the results verify the correctness and rationality of the simulation.

Copyright (c) 2017 by ASME
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