Reference : Low-order local modelling of structural nonlinearities
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/126815
Low-order local modelling of structural nonlinearities
English
Noël, Jean-Philippe mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Kerschen, Gaëtan mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Jul-2012
Proceedings of the XVIIIth Symposium on Vibrations, shocks and noise (VCB 2012)
No
No
International
XVIIIth Symposium on Vibrations, shocks and noise (VCB 2012)
du 3 au 5 juillet 2012
Paris
France
[en] Nonlinear system identification ; Nonlinearity characterisation ; Low-order piecewise polynomials
[en] The present paper addresses the problem of characterising structural nonlinearities in view of system identification. A low-order local modelling strategy is proposed and encapsulated in a recently-introduced frequency-domain nonlinear subspace method for the estimation of model parameters. The complete methodology is first demonstrated using two academic examples, namely a Duffing oscillator and a five-degree-of-freedom system comprising two nonlinearities. The identification of an experimental beam involving nonlinear geometrical behaviour is finally addressed.
Fonds pour la formation à la Recherche dans l'Industrie et dans l'Agriculture (Communauté française de Belgique) - FRIA
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/126815

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