Electrorheological technology is a new and marginal science, electrorheological fluid is a kind of smart material, with the control of external applied electric field, its coefficient of viscosity and shear yield stress can rapidly change, and this process is controllable, continuous, and reversible. With its particular performance, electrorheological fluid can be used as controllable damping media, which bring a promising way to research the semi-active engine mount system.Combining with the making of elec...