The Magnetorheological (MR) brake is an advanced technology that uses a special fluid to produce braking force. Its design includes a closely arranged multiple-disk configuration to increase the surface area of contact with the MR fluid. The MR fluid’s medium viscosity is used to enhance the braking force. The article aims to evaluate the thickness of gaps that contribute to the braking force, a crucial performance indicator of the MR brake with multiple disks. To demonstrate its performance, Finite Element Magnetic Method simulation software is used to predict the magnetic field distribution within the brake, and the brake model calculation is derived based on the proposed model. The simulation results show that the proposed model improves the braking torque of the MR brake with multiple disks. The effects of gap size and operational range variation on the braking force contribution are also presented.
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