Abstract
Magneto-rheological Brakes (MRBs) have attracted much attention because of their fast, controllable and adjustable braking performance. During the braking process, a lot of heat was generated by the excitation oil and the friction between magneto-rheological fluid and mechanical parts. The objective of this manuscript is to investigate the effect of temperature on the braking performance of MRB. The thermal distribution of MRB under different excitation current was analyzed through numerical simulation; The braking torque model based on temperature effect was established from microscopic point of view; The braking performance of MRB under different working conditions were tested through MR braking torque test platform, and the results not only revealed the influence of temperature, rotational speed and excitation current on the braking torque, but also verified the rationality and accuracy of the braking torque model. The research results fill the gap in the theoretical model and have important significance for the research on the braking performance of MRBs.
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