Semi-active vibration absorber based on real-time controlled MR damper
A new semi-active vibration absorber with real-time controlled MR damper (MR-SVA) is developed. The frequency control takes the semi-active restriction of the MR damper force into account in order to guarantee precise frequency tuning of the MR-SVA. The non-linear adaptive damping control takes the limited stroke of the MR-SVA mass into account to secure that the MR-SVA can be installed on real structures where space is limited. The experiments show that the MR-SVA outperforms the passive TMD significantly in all test cases.
semi-active vibration absorber control mr damper tuned mass damper negative stiffness