Reference : Nonlinear ground vibration identification of an F-16 aircraft - Part 2: Understanding...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/181452
Nonlinear ground vibration identification of an F-16 aircraft - Part 2: Understanding Nonlinear Behaviour in Aerospace Structures Using Sine-sweep Testing
English
Dossogne, Tilàn mailto [Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Noël, Jean-Philippe mailto [Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Grappasonni, Chiara mailto [Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Kerschen, Gaëtan mailto [Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Peeters, Bart [Siemens AG > Siemens PLM Software > > >]
Debille, Jan [Siemens AG > Siemens PLM Software > > >]
Vaes, Mark [Vrije Universiteit Brussel - VUB > ELEC Department > > >]
Schoukens, Johan [Vrije Universiteit Brussel - VUB > ELEC Department > > >]
Jun-2015
Proceedings of the International Forum on Aeroelasticity and Structural Dynamics
No
No
International
International Forum on Aeroelasticity and Structural Dynamics
du 28 juin au 2 juillet 2015
Saint Petersburg
Russia
[en] Ground vibration data ; F-16 aircraft ; Nonlinear subspace method
[en] Although they are generally modelled as linear systems, aircraft structures are known to be prone to nonlinear phenomena. A specific challenge encountered with fighter aircraft, besides aeroelastic nonlinearity, is the modelling of the wing-to-payload mounting interfaces. For large amplitudes of vibration, friction and gaps may be triggered in these connections and markedly impact the dynamic behaviour of the complete structure. In this series of two papers, the nonlinear dynamics of an F-16 aircraft is investigated using rigorous methods applied to real data collected during a ground vibration test campaign.
The present work focuses on the analysis of sine-sweep measurements in order to get an insightful understanding about the nonlinear behaviour of the aircraft. To this extent, restoring force surface and wavelet transform methods are applied both on the collected GVT data and simulation results performed on a simple numerical model of the F-16 wing and its payload.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/181452

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