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31 March 2022
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Active damping of bladed rail assemblies
Paknejad, Ahmad; Raze, Ghislain  ; Zhao, Guoying et al.
2021 • In Carletti, Eleonora; Crocker, Malcolm; Pawelczyk, Marek et al. (Eds.) Proceedings of the 27th International Congress on Sound and Vibration
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Keywords :
Bladed rail; High modal density; Lightly damped structure
Abstract :
[en] Although simple and effective, the performance of passive control techniques is limited in terms of authority and robustness. This paper studies the potential of using an active control system for mitigating the vibrations of a bladed rail assembly. First, we discuss the optimal placement of the piezoelectric patches. Although locating the patches at the blade root maximizes the strain energy, it results in important perturbations of the aerodynamic flow. Therefore, a pair of sensor and actuator is placed inside the bladed rail in order to have an as large as possible electromechanical coupling and a collocated system, i.e., alternating pole and zero. Second, an active control strategy using an integrator is designed and assessed in terms of attained closed-loop damping. The performance of the active damping is eventually compared with that of classical piezoelectric shunt damping.
Disciplines :
Aerospace & aeronautics engineering
Mechanical engineering
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Paknejad, Ahmad;  Université Libre de Bruxelles - ULB > Beams Department > Precision Mechatronics Laboratory
Raze, Ghislain  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Zhao, Guoying;  Université Libre de Bruxelles - ULB > Beams Department > Precision Mechatronics Laboratory
Deraemaeker, Arnaud;  Université Libre de Bruxelles - ULB > BATir Department
Kerschen, Gaëtan ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Collette, Christophe  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Active aerospace struct. and adv. mecha. systems
Language :
English
Title :
Active damping of bladed rail assemblies
Publication date :
2021
Event name :
27th International Congress on Sound and Vibration
Event organizer :
International Institute of Acoustics and Vibration
Event date :
from 11-07-2021 to 16-07-2021
Audience :
International
Main work title :
Proceedings of the 27th International Congress on Sound and Vibration
Main work alternative title :
[en] Advances in Acoustics, Noise and Vibration – 2021
Editor :
Carletti, Eleonora
Crocker, Malcolm
Pawelczyk, Marek
Tuma, Jiri
Publisher :
Silesian University Press, Gliwice, Poland
ISBN/EAN :
978-83-7880-799-5
Peer reviewed :
Peer reviewed

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