Abstract
A magneto-rheological (MR) fan clutch is a device that transmits torque by the shear stress of the MR fluids. In this paper, Bingham model is used to describe the constitutive characteristics of MR fluids subject to an applied magnetic field. The operational principle of the MR clutch is introduced. The torque transmitted by MR fluids is analyzed to compute the torque transmission ability in the MR clutch. The results show that with the increase of the applied magnetic field, the torque developed by MR fluids goes up rapidly.
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