Multimodal Damping of a Plate With a Passive Piezoelectric Network - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2016

Multimodal Damping of a Plate With a Passive Piezoelectric Network

Résumé

Multimodal vibration reduction can be obtained by coupling a mechanical structure to an electrical network approximating its modal properties. This strategy is applied to the control of a clamped plate with a 2D network of passive electrical components. The plate and the network are coupled through a periodic array of piezoelectric patches that enables the energy conversion. The network is experimentally implemented with inductors and transformers in order to create electrical resonances that present a spatial distribution approaching the first mode shapes of the plate. By tuning electrical resonances to mechanical ones, it becomes possible to introduce the equivalent of a tuned mass effect. This effect only occurs if the electrical and mechanical mode shapes are sufficiently close, which requires specific network topology and boundary conditions. Once the network is tuned, adding resistors introduces damping that can lead to a broadband vibration reduction of the plate. It is thus shown that a 2D control can be implemented with a purely passive solution, which could be of great interest for many embedded applications.
Fichier principal
Vignette du fichier
254_los_2016feb15.pdf (409.4 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01739670 , version 1 (21-03-2018)

Identifiants

  • HAL Id : hal-01739670 , version 1

Citer

Boris Lossouarn, Mathieu Aucejo, Jean-François Deü, Kenneth A. Cunefare. Multimodal Damping of a Plate With a Passive Piezoelectric Network. 34th IMAC Conference and Exposition on Structural Dynamics, IMAC XXXIV, Jan 2016, Orlando, United States. ⟨hal-01739670⟩
38 Consultations
71 Téléchargements

Partager

Gmail Facebook X LinkedIn More