Analysis and optimization of the current flowing technique for semi-passive multi-modal vibration reduction

Abstract

This article deals with semi-passive multi-modal vibration control by means of piezo-benders, particularly on an already available method: the Current Flowing technique, which has a number of advantages with respect to the other methods presented in literature. Such a technique relies on the link between the bender and an electrical impedance, which allows mechanical energy dissipation. Though its analysis has already been discussed in the state of the art, many points are still open. The paper gives a deep analysis of this control technique and then presents an algorithm for the optimization of the electrical network linked to the bender. ©2010 Society for Experimental Mechanics Inc.