Design and Finite Element Analysis of Magnetorheological Damper

AbstractIn order to solve the problem that the output damping force of magnetorheological Damper is not large enough and the adjustable range is small, a bypass magnetorheological Damper is designed in this paper. The Valve is connected in a hydraulic cylinder with pipes to form a controllable magnetorheological Damper device. Two structures are designed by adding non-magnetic materials to the structure so that the magnetic field lines pass vertically through the damping gap as much as possible. One is to use two coils and add a non-magnetic material above the coil, and the other is to use only one coil and add a non-magnetic material above the coil. The finite element method is used to simulate and analyze the parameters of two structures which affect the damping performance, and the results are discussed. The results show that more magnetic force lines can pass through the damping channel vertically by adding non-magnetic material to the structure, which can increase the damping force and adjustable coefficient.