Optimization of the current flowing technique aimed at semi-passive multi-modal vibration reduction

The paper deals with the analysis and optimization of a semi-passive multi-modal vibration attenuation technique exploiting piezo-benders actuators. Although there are different methods available in the literature, attention has been focused on the current flowing technique as it has a number of advantages with respect to the other approaches. In this context the control bender is linked to an electrical impedance, designed to maximize the mechanical energy dissipation. Though the method has already been presented in the literature, many points have still to be investigated. The paper gives a deeper analysis of this control technique and then presents an algorithm aimed at optimizing the electrical network linked to the bender.

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