Research demonstrates that optimized coil design improves braking torque in magnetorheological brakes, indicating enhanced performance and cost-effectiveness.
This study investigates the impact of various coil parameters on the working efficiency of disc-form magnetorheological brakes (MRBs). While earlier research predominantly addressed coil shape and count, the present work examines less-explored factors, including coil installation position and conductor diameter. Finite Element Method (FEM) simulations were performed to analyze the relationships among braking torque, coil geometry, and applied current, with a particular focus on enhancing the torque-to-massratio (T/M) to optimize both performance and cost-effectiveness. Results demonstrate that reducing the air gap between the coil and the MR fluid layer effectively concentrates magnetic flux, yielding a substantial increase in braking torque. The study offers comprehensive insights into coil design and configuration and proposes recommendations to improve MRB performance while maintaining economic feasibility.
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Ngoc et al. (2025) studied this question.
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