Contract 21539/08/NL/SFe - Advancement of mechanical verification methods for non-linear spacecraft: Nonlinear identification using a subspace-based method in the frequency domain
Nonlinear system identification; Space structure; Subspace method
Abstract :
[en] The objective of this technical note is to explore the applicability of a newly introduced nonlinear
system identification technique to spacecraft structures. To this end, numerical experiments are conducted using a finite element model of the SmallSat spacecraft. A detailed introduction to the method, referred to as the frequency-domain nonlinear subspace identification (FNSI) method, is provided and its major assets are commented. Random-type and sine-sweep excitations are considered and identification results are extensively discussed.
Research Center/Unit :
ESTEC
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
Renson, Ludovic ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Kerschen, Gaëtan ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Language :
English
Title :
Contract 21539/08/NL/SFe - Advancement of mechanical verification methods for non-linear spacecraft: Nonlinear identification using a subspace-based method in the frequency domain
Publication date :
February 2012
Publisher :
ESA (ESTEC), Noordwijk, Netherlands
Number of pages :
67
Name of the research project :
Advancement of Mechanical Verification Methods for Non-linear Spacecraft Structures
