Modeling of magnetorheological mounts in various operation modes

Recent advances in the research of magnetorheological/electrorheological (MR/ER) fluid based devices have indicated the opportunities for smart fluid based devices utilizing more than one operation mode. As such, the purpose of the present research is to draw attention to the existing models of magnetorheological (MR) mounts operating in two of the three fundamental operating modes, namely, the flow mode and the squeeze mode, and to highlight the potential applications of these modes in hydraulic mount applications. Therefore, in the paper the authors focus on recent applications of MR/ER fluids in that domain, and then proceed to summarizing the modeling principles for the two operation modes followed by a finite-element magnetostatic analysis of the mount's magnetic circuit, parameter sensitivity study and exemplary nu-merical simulations of each mode. The simulation results are converted into the frequency domain and presented in the form of dynamic stiffness and damping vs. frequency plots, respectively.