Article (Scientific journals)
Passive control of multiple structural resonances with piezoelectric vibration absorbers
Raze, Ghislain; Dietrich, Jennifer; Kerschen, Gaëtan
2021In Journal of Sound and Vibration, 515, p. 116490
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Keywords :
Passive control law; Multimodal vibration mitigation; Piezoelectric shunt; Digital control
Abstract :
[en] A novel sequential tuning procedure for passive piezoelectric shunts targeting multiple structural modes is proposed in this work. The control authority on each targeted mode can be quantitatively chosen ab initio and is shown to be limited by passivity requirements, which highlights the fundamental limitations of multimodal piezoelectric shunts. Based on effective characteristics of the piezoelectric system around resonance, electrical damping ratios and resonance frequencies are derived using well-established single-mode formulae from the literature, thereby fully specifying the characteristics of the shunt impedance. The proposed approach is numerically verified and experimentally validated on piezoelectric beams by emulating the shunt with a digital vibration absorber.
Disciplines :
Aerospace & aeronautics engineering
Engineering, computing & technology: Multidisciplinary, general & others
Mechanical engineering
Author, co-author :
Raze, Ghislain  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Dietrich, Jennifer ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Kerschen, Gaëtan  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Language :
English
Title :
Passive control of multiple structural resonances with piezoelectric vibration absorbers
Publication date :
22 December 2021
Journal title :
Journal of Sound and Vibration
ISSN :
0022-460X
eISSN :
1095-8568
Publisher :
Elsevier, United States
Volume :
515
Pages :
116490
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 04 October 2021

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