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Abstract

The braking action which is achieved by MR fluid which transforms torque by shear force is called as Magneto Rheological (MR) fluid brake. In the presence of an external magnetic field strength, MR rotary brake shows a quick change in response to its braking torque. In the present paper, two configurations of MR disc brake i.e., first with constant and second with step-shape clearance is analyzed and conclude how changes in the shape of the disc affects the maximum braking torque induce in the MR brake. This paper will pinpoint that, under the same excitation current the total magneto-induced torque of step-shape clearance MR brake are increased by 7%, as compared with produced torque of constant functional clearance brake.

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