In the literature, collocated or distributed arrays of piezoelectric patches are employed to actively control structural vibrations. In the present work, in order to damp beam vibrations a completely passive electric controller is designed, exploiting distributed piezoelectric transduction. In this way a simultaneous multimodal vibration suppression is obtained. The optimal electric network (interconnecting the piezoelectric transducers) is synthesized as a finite differences approximation of the derived distributed (infinite dimensional) optimal controller. A prototype of the proposed novel smart structure (Piezo-ElectroMechanical beam) is designed, allowing for appreciating its technical feasibility and effectiveness.
Modeling and design of passive electric networks interconnecting piezoelectric transducers for distributed vibration control / Porfiri, Maurizio; Dell'Isola, Francesco; Santini, Ezio. - In: INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS. - ISSN 1383-5416. - 21 (2):(2005), pp. 69-88.
Modeling and design of passive electric networks interconnecting piezoelectric transducers for distributed vibration control
PORFIRI, MAURIZIO;DELL'ISOLA, Francesco;SANTINI, Ezio
2005
Abstract
In the literature, collocated or distributed arrays of piezoelectric patches are employed to actively control structural vibrations. In the present work, in order to damp beam vibrations a completely passive electric controller is designed, exploiting distributed piezoelectric transduction. In this way a simultaneous multimodal vibration suppression is obtained. The optimal electric network (interconnecting the piezoelectric transducers) is synthesized as a finite differences approximation of the derived distributed (infinite dimensional) optimal controller. 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.