Paper published in a book (Scientific congresses and symposiums)
Nonlinear ground vibration identification of an F-16 aircraft - Part 2: Understanding Nonlinear Behaviour in Aerospace Structures Using Sine-sweep Testing
IFASD2015 - Nonlinear Ground Vibration Identification of an F-16 Aircraft - Part II Understanding Nonlinear Behaviour in Aerospace Structures Using Sine-sweep Testing.pdf
[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.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Dossogne, Tilàn ; Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Noël, Jean-Philippe ; Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Grappasonni, Chiara ; Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Kerschen, Gaëtan ; 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
Language :
English
Title :
Nonlinear ground vibration identification of an F-16 aircraft - Part 2: Understanding Nonlinear Behaviour in Aerospace Structures Using Sine-sweep Testing
Publication date :
June 2015
Event name :
International Forum on Aeroelasticity and Structural Dynamics
Event place :
Saint Petersburg, Russia
Event date :
du 28 juin au 2 juillet 2015
Audience :
International
Main work title :
Proceedings of the International Forum on Aeroelasticity and Structural Dynamics
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