Reference : Second-order blind identification for operational modal analysis
Diverses speeches and writings : Conference given outside the academic context
Physical, chemical, mathematical & earth Sciences : Mathematics
Physical, chemical, mathematical & earth Sciences : Physics
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/18326
Second-order blind identification for operational modal analysis
English
Poncelet, Fabien mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
Kerschen, Gaëtan mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Golinval, Jean-Claude mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
Marin, F. mailto [V2i S.A > > > >]
Sep-2005
7
International
ASME International Design Engineering Technical Conferences
September 4-7, 2007
Las Vegas, Nevada
USA
[en] operational modal analysis (OMA) ; Second-Order Blind Identification
[en] For modal analysis of large structures, it is unpractical and expensive to use artificial excitation (e.g., shakers). However, engineering structures are most often subject to ambient loads(e.g., traffic and wind) that can be exploited for modal parameter estimation. One difficulty is that the actual loading conditions cannot generally be measured, and output-only measurements are available. This paper proposes to explore the utility of blind source separation (BSS) techniques for operational modal analysis. The basic idea of BSS is to recover unobserved source signals from their observed mixtures. The feasibility and practicality of the proposed method are demonstrated using an experimental application.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/18326

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