Performance analysis of magneto-rheological mounts

The effect of various parameters for a magneto-rheological (MR) mount on th e vibration isolation performance of the mount is studied. The mount that i s used for this study incorporates MR fluid in a conventional fluid mount t o open and close an inertia track between the fluid chambers of the mount. It has been shown in previous studies that such switching of the inertia tr ack improves the mount's isolation effect by eliminating the large transmis sibility peak that commonly exists at frequencies larger than the notch fre quency for conventional fluid mounts. A sensitivity analysis is conducted t o evaluate the effect of different parameters, such as the rubber stiffness , inertia track, fluid resistance, piston area, and volumetric stiffness on the transmissibility of the mount. The results show that varying the rubbe r stiffness, piston area, and volumetric stiffness of the mount have the gr eatest effect on the vibration performance of the mount, as measured by its transmissibility.