Reference : Nonparametric subspace identification of nonlinear structures - Application to a spac...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/146867
Nonparametric subspace identification of nonlinear structures - Application to a spacecraft
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 >]
Apr-2013
Proceedings of the 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
No
No
International
54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
8 - 11 April 2013
American Institute of Aeronautics and Astronautics
Boston
MA
[en] Nonlinear system identification ; Cubic splines ; Spacecraft structure
[en] The objective of the present paper is to address the identification of a strongly nonlinear
satellite structure by exploiting a new nonlinear subspace identification method formulated
in the frequency domain, referred to as the FNSI method. The modal parameters of
the underlying linear structure and the coefficients of the nonlinear internal forces will
be estimated by this approach. Moreover, because a priori knowledge about nonlinear
behaviour may be limited, the paper also proposes a nonparametric spline-based modelling
strategy, encapsulated in the FNSI method. The application of interest is the SmallSat
spacecraft developed by EADS-Astrium, which possesses an impact-type nonlinear device
consisting of eight mechanical stops limiting the motion of an inertia wheel mounted on an
elastomeric interface.
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/2268/146867
10.2514/6.2013-1883

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