Simulation and Experimental Study on Temperature Characteristics of Magnetorheological Fluid Brake for Vehicles

被引：4
作者：
Wang D. [1 ]
Yao L. [1 ]
Shao W. [1 ,2 ]
Zi B. [1 ]
Chen W. [1 ]
机构：
[1] School of Mechanical Engineering, Hefei University of Technology, Hefei
[2] Anhui Jianghuai Automobile Group Corp., Ltd., Hefei
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2019年 / 55卷 / 06期
关键词：
Braking test; Magnetorheological fluid brake; Simulation analysis; Temperature characteristic;
D O I：
10.3901/JME.2019.06.100
中图分类号：
学科分类号：
摘要：
In view of the problem that the braking performance is decreased due to the heat accumulation in the braking process of the magnetorheological fluid brake (MRB), simulation analysis and experimental evaluation of temperature characteristics of MRB are performed. Based on the analysis and calculation of the heat source and heat generation rate of MRB, a mathematical model for the temperature field is established. Then, aiming at three different braking conditions for vehicles: normal braking, emergency braking and frequency interval braking, the transient temperature field of MRB is simulated and analyzed. Finally, an experimental platform is developed and several braking tests are carried out to evaluate the output braking torque, the braking performance and the temperature characteristic of MRB. Results show that the MRB exhibits a good constant deceleration braking property under a same coil current. During a braking period, the temperatures at the working gap first increase and then decrease under various conditions. Test results and simulation values for the temperature at the measuring point are in good agreement, which indicates that the established temperature simulation model can reflect quite well the actual temperature characteristic of the MRB. © 2019 Journal of Mechanical Engineering.
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页码：100 / 107
页数：7
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