Inverse LuGre model for a small-scale MR damper

Magnetorheological (MR) dampers are controllable damping devices which successfully replace viscous dampers in most demanding vibration damping systems. In order to control the MR damper force in real time, a feed-forward control strategy is often used which utilizes an inverse model of the MR damper. This paper presents the inverse model for a small-scale MR damper formulated by an inversion of the LuGre friction model. In the first part of the paper, the LuGre model for the RD-1097-01 MR damper is identified based on the MR damper force measurements under sine excitation and constant currents. Later, an inversion of the LuGre model is proposed and the accuracy of the inverse LuGre model is validated by simulations.