The Delayed Resonator (DR) is a recent active vibration absorption technique which uses time delayed position feedback to generate ideal resonance in a passive vibration absorber. This can also be achieved using proportional and feedback (PD)control. In this paper; these two techniques are compared analytically and experimentally. It is also shown that actuator dynamics must be considered in order to determine the control parameters correctly. A theoretical development is presented towardsthis purpose. Experimental results show that both techniques are equally effective in vibration absorption.
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