Modeling and design of passive electric networks interconnecting piezoelectric transducers for distributed vibration control

Maurizio Porfiri (1) , Francesco Dell'Isola (2, 3) , Ezio Santini (4)

1 Department of Mechanical and Aerospace Engineering
2 Dipartimento di Ingegneria Strutturale e Geotecnica
3 Laboratorio Strutture e Materiali Intelligenti - Fondazione Tullio Levi-Civita
4 DIIIE / UNIVAQ - Dipartimento di Ingegneria industriale e dell'informazione e di economia

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.

Domaines: Mécanique [physics.med-ph]

Maurizio Porfiri, Francesco Dell'Isola, Ezio Santini. Modeling and design of passive electric networks interconnecting piezoelectric transducers for distributed vibration control. International Journal of Applied Electromagnetics and Mechanics, 2005, pp.19. ⟨hal-00509102⟩