Modeling and Simulation of a Magnetorheological Mount

Magnetorheological (MR) mounts have been developed to replace hydraulic mounts because the MR effect makes the mount controllable and more adaptive. An MR mount, except for the added damping due to magnetic field, operates similarly with a hydraulic mount. Therefore, the geometry of the flow paths (inertia tracks) and the distribution of the magnetic field across these paths affect significantly the mount behavior. In this study, different geometries for the flow paths of an MR mount, designed to operate in flow mode, are considered and their effect on the mount behavior is simulated. The effects of the different geometries considered are quantified through changes in displacement transmissibility of the mount over a 0 to 70 Hz frequency range. The results of the analysis provide useful insights about model parameter values and contribute to the successful design of the flow mode operating MR mount.