Article (Scientific journals)
Experimental continuation in nonlinear dynamics: recent advances and future challenges
Raze, Ghislain; Abeloos, Gaëtan; Kerschen, Gaëtan
2024In Nonlinear Dynamics
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Keywords :
Experimental nonlinear dynamics; Control-based methods; Experimental continuation; Control-based continuation; Phase-locked loop; Response-controlled testing
Abstract :
[en] Experimental continuation encompasses a set of methods that combine control and continuation to obtain the full bifurcation diagram of a nonlinear system experimentally, including responses that would be unstable in the system without feedback control. Such control-based methods thus allow the experimenter to directly and exhaustively explore the dynamics of the system without the need for a good mathematical model. The objective of this paper is twofold, namely (i) to review and present the state-of-the-art methods in a unified manner and (ii) to introduce a novel experimental derivative-free arclength continuation procedure, termed arclength control-based continuation. These methods are also demonstrated and compared on an electronic Duffing oscillator and a clamped thin plate featuring geometrical nonlinearity. Finally, the current state of the art is reflected upon, and the challenges lying ahead for this growing field are discussed.
Disciplines :
Mechanical engineering
Aerospace & aeronautics engineering
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Raze, Ghislain  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Abeloos, Gaëtan  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Kerschen, Gaëtan  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Language :
English
Title :
Experimental continuation in nonlinear dynamics: recent advances and future challenges
Publication date :
24 November 2024
Journal title :
Nonlinear Dynamics
ISSN :
0924-090X
eISSN :
1573-269X
Publisher :
Springer Science and Business Media LLC
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Funding text :
Gaëtan Abeloos and Ghislain Raze are a FRIA Grantee and a Postdoctoral Researcher, respectively, of the Fonds de la Recherche Scientifique - FNRS, which is gratefully acknowledged.
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