2019 • In Benjeddou, Ayech; Mechbal, Nazih; Deü, Jean-François (Eds.) Proceedings of the 9th ECCOMAS Thematic Conference on Smart Structures and Materials - SMART 2019
Piezoelectric Absorber; Digital Vibration Absorber; Delayed System; Stability
Abstract :
[en] Digital piezoelectric vibration absorbers synthesizing passive shunt circuits may be subject to instabilities. This work investigates the cause for these instabilities, and highlights the role of sampling delays in their onset. If for practical reasons the sampling frequency cannot be increased, a stabilization procedure which anticipates the sampling delays is proposed. The theoretical developments in this work are experimentally validated on a piezoelectric beam.
Raze, Ghislain ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Paknejad, Ahmad; Université Libre de Bruxelles - ULB > Department of Bio-, Electro- and Mechanical Systems > Precision Mechatronics Laboratory
Zhao, Guoying; Université Libre de Bruxelles - ULB > Department of Bio-, Electro- and Mechanical Systems > Precision Mechatronics Laboratory
Broun, Valery; Haute École de la province de Liège > Département ingénieur industriel > Service d'Électronique
Collette, Christophe ; Université Libre de Bruxelles - ULB > Department of Bio-, Electro- and Mechanical Systems > Precision Mechatronics Laboratory
Kerschen, Gaëtan ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Language :
English
Title :
Suppression of Delay-induced Instabilities of Digital Piezoelectric Vibration Absorbers
Publication date :
July 2019
Event name :
9th ECCOMAS Thematic Conference on Smart Structures and Materials
Event organizer :
Arts et Métiers - Ensam
Event place :
Paris, France
Event date :
from 08-07-2019 to 12-07-2019
Audience :
International
Main work title :
Proceedings of the 9th ECCOMAS Thematic Conference on Smart Structures and Materials - SMART 2019
Editor :
Benjeddou, Ayech
Mechbal, Nazih
Deü, Jean-François
Publisher :
International Centre for Numerical Methods in Engineering (CIMNE), Barcelona, Spain
Pages :
991-1001
Commentary :
Compared to the proceedings, this paper contains a few corrections:
- gamma has been changed to beta right after Equation (17)
- Equations (21) and (22) have been corrected
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