Design and Performance of a Novel Magnetorheological Fluid-Based Engine Vibration Damper

This paper presents the design of a magnetorheological (MR) fluid-based damper for reducing the vibration of engine. The damper adopts a parallel configuration, combining a rubber isolator and a MR damper. This design provides not only a high static stiffness but also the capability to adjust damping by varying the excitation current. Subsequently, the magnetic circuit of the damper is simulated and optimized using ANSYS software. Then, a prototype of the damper is fabricated and assembled. Finally, the dynamic performance of the damper is tested. The results demonstrate that a maximum enhancement of the damping ratio 44.474% can be achieved under the applied magnetic field.