Abstract
This paper is concerned with the problem of dynamics and stability of piezoelectric laminate structures, in which several piezoelectric elements are shunted by a multi-input impedance. The problem is shown to be equivalent to a multivariable feedback control problem. A parameterization of stabilizing admittance transfer function matrices is given, and a specific class of controllers capable of reducing structural vibrations and guaranteeing closed loop stability is introduced. Experimental results are presented, demonstrating the effectiveness of the proposed methodology.
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