Paper published in a book (Scientific congresses and symposiums)
Time- and frequency-domain subspace identification of a nonlinear spacecraft
Noël, Jean-Philippe; Marchesiello, Stefano; Kerschen, Gaëtan
2012In Proceedings of the ISMA International Conference on Noise and Vibration Engineering 2012
 

Files


Full Text
ISMA0212_paper215_JPNoel.pdf
Author preprint (1.92 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Nonlinear system identification; Subspace methods; Spacecraft structure
Abstract :
[en] The present paper discusses the identification of the SmallSat spacecraft, a real-life nonlinear space structure developed by EADS-Astrium. To this end, two nonlinear subspace identification techniques formulated in the time and frequency domains are exploited, referred to as the TNSI and FNSI methods, respectively. The frequency response functions (FRFs) of the underlying linear spacecraft and the nonlinear coefficients are estimated by these approaches. The nonlinear component comprises an inertia wheel mounted on a support, the motion of which is constrained by eight elastomer plots and mechanical stops. This application is challenging for several reasons, which include high modal density, the discontinuous nature of the nonlinearities and order selection of the identified reduced model.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Noël, Jean-Philippe ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Marchesiello, Stefano;  Politecnico di Torino
Kerschen, Gaëtan  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Language :
English
Title :
Time- and frequency-domain subspace identification of a nonlinear spacecraft
Publication date :
September 2012
Event name :
ISMA International Conference on Noise and Vibration Engineering 2012
Event date :
du 17 septembre 2012 au 19 septembre 2012
Audience :
International
Main work title :
Proceedings of the ISMA International Conference on Noise and Vibration Engineering 2012
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Available on ORBi :
since 20 September 2012

Statistics


Number of views
186 (11 by ULiège)
Number of downloads
515 (9 by ULiège)

Scopus citations®
 
5
Scopus citations®
without self-citations
2

Bibliography


Similar publications



Contact ORBi