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H∞ optimization of positive position feedback control for mitigation of nonlinear vibrations
Zhao, Guoying; Paknejad, Ahmad; Raze, Ghislain et al.
2018In Desmet, Wim; Pluymers, Bert; Moens, David et al. (Eds.) Proceedings of ISMA2018 and USD2018
 

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Keywords :
Feedback control; Numerical methods; Position control; Structural dynamics; Closed-form expression; Duffing oscillator; Harmonic Balance method; Non-linear vibrations; Optimal controls; Positive position feedback; Resonant vibrations; Vibration analysis
Abstract :
[en] This paper investigates the potential of using positive position feedback control for the mitigation of nonlinear vibrations. Closed form expressions for the H 8 optimal control parameters that minimize the maximal response of the structure are firstly derived for the linear case and then extended to the nonlinear case. The resonant vibration of a Duffing oscillator is considered to illustrate the proposed tuning of the optimal control parameters and the harmonic balance method is employed to approximate the analytical solutions. Numerical simulations are performed to demonstrate and validate the proposed method.
Disciplines :
Mechanical engineering
Aerospace & aeronautics engineering
Author, co-author :
Zhao, Guoying;  Université Libre de Bruxelles - ULB > Department of Bio-, Electro- and Mechanical Systems > Precision Mechatronics Laboratory
Paknejad, Ahmad;  Université Libre de Bruxelles - ULB > Department of Bio-, Electro- and Mechanical Systems > Precision Mechatronics Laboratory
Raze, Ghislain  ;  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
Collette, Christophe  ;  Université Libre de Bruxelles - ULB > Department of Bio-, Electro- and Mechanical Systems > Precision Mechatronics Laboratory
Language :
English
Title :
H∞ optimization of positive position feedback control for mitigation of nonlinear vibrations
Publication date :
2018
Event name :
ISMA 2018 - 28th international conference on Noise and Vibration Engineering
Event organizer :
KU Leuven
Event place :
Leuven, Belgium
Event date :
From 17-09-2018 to 19-09-2018
Audience :
International
Main work title :
Proceedings of ISMA2018 and USD2018
Editor :
Desmet, Wim
Pluymers, Bert
Moens, David
Rottiers, Ward
Publisher :
KU Leuven, Leuven, Belgium
ISBN/EAN :
9789073802995
Pages :
143-151
Available on ORBi :
since 20 June 2019

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