Ferrofluid Brake Electromagnetic Modeling

We propose a numerical model of magnetic brake design with viscose ferrofluid as controllable friction material. Friction damping force is controlled by an electric coil, where the current value is regulated depending on the rotational speed of the device. Results about friction force and total braking force/torque are obtained by coupled finite element method modeling and electromagnetic brake kinematical model. Effects of the viscose ferrofluid over the breaking force and torque are estimated.