Physical interpretation of independent component analysis in structural dynamics

Kerschen, Gaëtan; Poncelet, Fabien; Golinval, Jean-Claude

doi:10.1016/j.ymssp.2006.07.009

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Article (Scientific journals)

Physical interpretation of independent component analysis in structural dynamics

Kerschen, Gaëtan; Poncelet, Fabien; Golinval, Jean-Claude

2007 • In Mechanical Systems and Signal Processing, 21, p. 1561–1575

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https://hdl.handle.net/2268/18984

DOI
10.1016/j.ymssp.2006.07.009

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Keywords :

system identification; output-only modal analysis; Blind source separation; Independent component analysis

Abstract :

[en] This paper focuses on the relation between the vibration modes of mechanical systems and the modes computed through a blind source separation technique called independent component analysis (ICA). For free and random vibrations of weakly damped systems, a one-to-one relationship between the vibration modes and the ICA modes is demonstrated using the concept of virtual source. Based on this theoretical link, a time-domain structural system identification technique is proposed and is illustrated using numerical examples.

Disciplines :

Mathematics
Mechanical engineering
Physics

Author, co-author :

Kerschen, Gaëtan ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux

Poncelet, Fabien ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures

Golinval, Jean-Claude ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures

Language :

English

Title :

Physical interpretation of independent component analysis in structural dynamics

Publication date :

2007

Journal title :

Mechanical Systems and Signal Processing

ISSN :

0888-3270

eISSN :

1096-1216

Publisher :

Academic Press, London, United Kingdom

Volume :

Pages :

1561–1575

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 18 August 2009

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98 (6 by ULiège)

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6 (2 by ULiège)

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Scopus citations^®

251

Scopus citations^®
without self-citations

244

OpenCitations

176

OpenAlex citations

237

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