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Perturbation Analysis for Robust Damage Detection with Application to Multifunctional Aircraft Structures

Article dans une revue avec comité de lecture
Auteur
HAJRYA, Rafik
ccMECHBAL, Nazih
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/9174
Date
2015
Journal
Smart Structures and Systems

Résumé

The most widely known form of multifunctional aircraft structure is smart structures for structural health monitoring (SHM). The aim is to provide automated systems whose purposes are to identify and to characterize possible damage within structures by using a network of actuators and sensors. Unfortunately, environmental and operational variability render many of the proposed damage detection methods difficult to successfully be applied. In this paper, an original robust damage detection approach using output-only vibration data is proposed. It is based on independent component analysis and matrix perturbation analysis, where an analytical threshold is proposed to get rid of statistical assumptions usually performed in damage detection approach. The effectiveness of the proposed SHM method is demonstrated numerically using finite element simulations and experimentally through a conformal load-bearing antenna structure and composite plates instrumented with piezoelectric ceramic materials.

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Nom:
PIMM-SSS-Hajrya-2015.pdf
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1.412Mo
Format:
PDF
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Documents liés

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  • Detection of structural damage using the exponential sine sweep method 
    Communication avec acte
    HAJRYA, Rafik; ccMECHBAL, Nazih; ccRÉBILLAT, Marc (DEStech Publications, Inc., 2013)
    Structural damages can result in nonlinear dynamical responses. Thus, estimating the nonlinearities generated by damages potentially allows detecting them. In this paper, an original approach called the ES2D (Exponential ...
  • Principal component analysis and perturbation theory–based robust damage detection of multifunctional aircraft structure 
    Article dans une revue avec comité de lecture
    HAJRYA, Rafik; ccMECHBAL, Nazih (SAGE Publications (UK and US), 2013)
    A fundamental problem in structural damage detection is to define an efficient feature to calculate a damage index. Furthermore, due to perturbations from various sources, we also need to define a rigorous threshold whose ...
  • Nonlinear structural damage detection based on cascade of Hammerstein models 
    Article dans une revue avec comité de lecture
    HAJRYA, Rafik; ccMECHBAL, Nazih; ccRÉBILLAT, Marc (Elsevier, 2014)
    Structural damages can result in nonlinear dynamical signatures that can significantly enhance their detection. An original nonlinear damage detection approach is proposed that is based on a cascade of Hammerstein models ...
  • Numerical Key Performance Indicators for the Validation of PHM Health Indicators with Application to a Hydraulic Actuation System 
    Article dans une revue avec comité de lecture
    LAMOUREUX, Benjamin; MASSE, Jean-Rémi; ccMECHBAL, Nazih (AIDIC, 2013)
    In order to perform Prognostic and Health Management (PHM) of a given system, it is necessary to define some relevant variables sensitive to the different degradation modes of the system. Those variables are named Health ...
  • Peaks Over Threshold Method for Structural Health Monitoring Detector Design 
    Communication avec acte
    HMAD, Ouadie; ccMECHBAL, Nazih; ccRÉBILLAT, Marc (International Workshop on Structural Health Monitoring, 2015)
    Structural Health Monitoring (SHM) system offers new approaches to interrogate the integrity of structures. The most critical step of such systems is the damage detection step since it is the first and because performances ...

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