In the literature distributed arrays of piezeoelectric patches are employed to actively control structural vibrations. In the present work in order to damp beam vibrations a completely passive electric controller is proposed, exploiting distributed piezoelectric transduction. The optimization of the distributed electric controller is performed analyzing the free wave propagation in the composite smart beam. The proposed controller allows for an optimal attenuation of wave propagation over any frequency range. A prototype of the proposed novel smart structure (Piezo-ElectroMechanical beam) is designed, allowing for appreciating its technical feasibility and effectiveness.
Piezoelectromechanical structures: a survey of basic concepts and methodologies / Dell'Isola, Francesco; E. G., Henneke; M., Porfiri. - 5056:(2003), pp. 574-582. (Intervento presentato al convegno Smart Structures and Materials 2003 Conference tenutosi a SAN DIEGO, CA nel MAR 02-06, 2003) [10.1117/12.483446].
Piezoelectromechanical structures: a survey of basic concepts and methodologies
DELL'ISOLA, Francesco;
2003
Abstract
In the literature distributed arrays of piezeoelectric patches are employed to actively control structural vibrations. In the present work in order to damp beam vibrations a completely passive electric controller is proposed, exploiting distributed piezoelectric transduction. The optimization of the distributed electric controller is performed analyzing the free wave propagation in the composite smart beam. The proposed controller allows for an optimal attenuation of wave propagation over any frequency range. A prototype of the proposed novel smart structure (Piezo-ElectroMechanical beam) is designed, allowing for appreciating its technical feasibility and effectiveness.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
