Semi-active vibration control unit tuned to maximise electric power dissipation

This paper proposes a local approach for the on-line tuning of semi-active vibration control unit, which is set to reduce resonant response target low-order flexural modes distributed structures subject broadband stochastic disturbances. The idea have multiple self-contained units, can be fixed on thin walled and sound radiation at low audio frequencies where dynamics controlled by modes. unit formed an electromagnetic seismic transducer connected resistive-inductive shunt. proposed criterion based maximisation time-averaged electrical power dissipated Both simulation experimental results are presented setup mounted plate model wall-structure excited random force investigates physics four criteria with reference natural First, minimisation total kinetic energy plate; second, absorbed unit; third, mechanical fourth, coil shows that, small Eddy currents damping effects transducer, electric shunt gives similar parameters, thus comparable effects, than cost function plate.