Perturbation Analysis for Robust Damage Detection with Application to Multifunctional Aircraft Structures
| Autor: | Nazih Mechbal, Rafik Hajrya |
|---|---|
| Přispěvatelé: | Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM), Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), FUI MSIE (Pole Astech) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Engineering
Statistical assumption conformal load-bearing antenna structure Conformal map 010103 numerical & computational mathematics 02 engineering and technology [SPI.MECA.MSMECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Materials and structures in mechanics [physics.class-ph] 01 natural sciences [SPI.AUTO]Engineering Sciences [physics]/Automatic 0203 mechanical engineering impact damage Electronic engineering 0101 mathematics Electrical and Electronic Engineering range subspaces Structural health monitoring robust damage detection business.industry Mécanique: Matériaux et structures en mécanique [Sciences de l'ingénieur] decision-making Automatique / Robotique [Sciences de l'ingénieur] Independent component analysis Finite element method Computer Science Applications Vibration 020303 mechanical engineering & transports Control and Systems Engineering independent component analysis piezoelectric ceramic material Antenna (radio) Actuator business analytical threshold matrix perturbation theory [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing Traitement du signal et de l'image [Sciences de l'ingénieur] composite structures |
| Popis: | 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. FUI MSIE (Pole Astech) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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