Self-Powered Active Vibration Control Using Continuous Control Input

Abstract

A new method to achieve self-powered active vibration control is proposed. The proposed system produces continuous control input using energy absorbed by a damper and does not require external energy. In the previous self-powered system, the actuator was controlled by the on-off controller and could not produce continuous control input. This induces chatter for high frequency motion and degrades its performance. To examine the performance of the new system, the authors fabricated an experimental setup. Energy regenerated by the damper is accumulated in the condenser and the actuator uses it for active control. The variable resistor whose resistance is controlled by a computer is installed in the circuit of the actuator and this produces continuous control input. The experiments Show that the proposed selfpowered active control has better isolation performance than the previous on-off, semiactive and passive systems.