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Damage Detection of Composite Structure Using Independent Component Analysys
Damage Detection of Composite Structure Using Independent Component Analysys [1625]
Автор(ы): R. Hajrya, N. Mechbal, M. Verge
Издательство: DEStech Publications, Inc., 439 North Duke Street, Lancaster, Pennsylvania 17602 U.S.A., www.destechpub.com
Количество страниц: 8
Год: 2011
Аннотация[398 КБ] 
Код: 10269
Описание
This paper studies the application of independent component analysis (1CA) to structural health monitoring (SHM). The 1CA technique is used to extract features from measurement sensors of a smart composite structure. To enhance information about damage, we propose a new damage detection methodology, based on the analysis of a symmetric matrix obtained from the mixing matrix. The subspaces associated to the symmetric matrix are used to define a damage index (Dl). Furthermore, we propose a bound associated to this Dl and decision on the state of the structure is taken. Experimentation on a composite smart structure shows the performance of the proposed approach.
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