Equivalent electrical circuit design of a magnetorheological rotary brake

In this paper is proposed the equivalent electrical circuit that describes the input/output behavior of the designed and manufactured Magnetorheological Fluid rotary brake system. The input is represented by a current and the outputs are respectively the force and the magnetic field. The transfer function estimation was computed by means of orthonormal rational basis functions starting from the frequency response measurements carried out in laboratory during the testing and characterization of the designed prototype. Finally, the circuit synthesis was performed using the well-known method of Cauer.