Improved shunt damping with two negative capacitances: an efficient alternative to resonant shunt - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Intelligent Material Systems and Structures Année : 2016

Improved shunt damping with two negative capacitances: an efficient alternative to resonant shunt

Résumé

This paper deals with piezoelectric shunt damping enhanced with negative capacitances. A novel electrical circuit layout is addressed, based on the use of two negative capacitances. It is shown that the shunt performances, in terms of vibration reduction and stability margins, are increased as compared with the classical single negative capacitance layouts. Then, the article focuses on the comparison of a simple resistive shunt, enhanced by a pair of negative capacitances, with a classical resonant shunt. It is shown that the newly proposed enhanced resistive shunt can show equivalent performances in terms of vibration attenuation than the resonant shunt, with at the same time an increased robustness to frequency detuning, in the case of mono-modal damping. The broadband control capability of the resistive shunt coupled to the new negative capacitance layout is also evidenced. The main part of the work is analytical, and then the model is validated by an extensive experimental campaign at the end of the paper.
Fichier principal
Vignette du fichier
L2EP_JIMSS_Thomas_2016.pdf (2.19 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01392769 , version 1 (04-11-2016)

Identifiants

Citer

Marta Berardengo, Olivier Thomas, Christophe Giraud-Audine, Stefano Manzoni. Improved shunt damping with two negative capacitances: an efficient alternative to resonant shunt. Journal of Intelligent Material Systems and Structures, 2016, pp.1-17. ⟨10.1177/1045389X16667556⟩. ⟨hal-01392769⟩
161 Consultations
175 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More