Experimental Beam Structure With Magnetically Controlled Damping Blocks

This study considers the dynamic response of an experimental system combining two thin, aluminium beams with damping blocks attached. Damping blocks made of magnetorheological elastomer were placed at the tips of the beams and sequentially clamped using electromagnets to obtain energy dissipation. We analyse whether the magnetorheological elastomers can be effectively used in controlled damping systems with varying levels of stiffness and friction. The experimental results demonstrate that residual vibrations can be suppressed faster when the switching control is applied than if the electromagnetic actuator is turned on constantly. The effectiveness of the solution is discussed, based on the experimental results. The decay of vibration amplitude, damping and the system frequency is provided.