Synthesis of electrical networks interconnecting PZT actuators to damp mechanical vibrations

Francesco Dell'Isola (1, 2) , E.G. Henneke (3) , Maurizio Porfiri (4)

1 Dipartimento di Ingegneria Strutturale e Geotecnica
2 Laboratorio Strutture e Materiali Intelligenti - Fondazione Tullio Levi-Civita
3 Department Engineering Sciences and Mechanics
4 Department of Mechanical and Aerospace Engineering

This paper proves that it is possible to damp mechanical vibrations of some beam frames by means of piezoelectric actuators interconnected via passive networks. We create a kind of electromechanical wave guide where the electrical velocity group equals the mechanical one thus enabling an electromechanical energy transfer. Numerical simulations are presented which prove the technical feasibility of proposed device.

Domaines: Mécanique [physics.med-ph]

Francesco Dell'Isola, E.G. Henneke, Maurizio Porfiri. Synthesis of electrical networks interconnecting PZT actuators to damp mechanical vibrations. 2010. ⟨hal-00505168⟩