An Effective Structural Health Monitoring Methodology For Damage Isolation Based On Multisensor Arrangements

dc.creatorSouza
dc.creatorPablo Rodrigo; Oliveira Nobrega
dc.creatorEuripedes Guilherme
dc.date2017
dc.dateabr
dc.date2017-11-13T13:23:43Z
dc.date2017-11-13T13:23:43Z
dc.date.accessioned2018-03-29T05:56:20Z
dc.date.available2018-03-29T05:56:20Z
dc.identifierJournal Of The Brazilian Society Of Mechanical Sciences And Engineering. Springer Heidelberg, v. 39, p. 1351 - 1363, 2017.
dc.identifier1678-5878
dc.identifier1806-3691
dc.identifierWOS:000398835200025
dc.identifier10.1007/s40430-016-0586-7
dc.identifierhttps://link-springer-com.ez88.periodicos.capes.gov.br/article/10.1007%2Fs40430-016-0586-7
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/328161
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1365186
dc.descriptionThe development of strategies to evaluate health of mechanical structures has been studied by the international community due to their potential application in the prevention of failures and optimization of maintenance procedures. These systems requires digital signal processing algorithms and interpretation methods, which aim to extract parameters sensitive to the rise of discontinuities in the material from measurements, to classify signal events to detect the damage onset. This paper proposes a simple and effective methodology for monitoring the integrity of mechanical structures, based on Lamb wave and pitch-catch approach, through analysis of signals generated by multisensor arrangements. These signals are processed by discrete wavelet and Hilbert transform, intended to improve peak amplitude estimation, through noise and dispersion reduction. Assessment of structure's integrity proceeds through the joint analysis of damage indices calculated from the discrepancy of the maximum amplitude of the signal measured by each sensor of the arrangement. Experimental application of the method to an aluminum plate showed its effectiveness to detect, localize and evaluate damage severity in established regions of the monitored area, including the case of two simultaneous damages.
dc.description39
dc.description4
dc.description1351
dc.description1363
dc.languageEnglish
dc.publisherSpringer Heidelberg
dc.publisherHeidelberg
dc.relationJournal of the Brazilian Society of Mechanical Sciences and Engineering
dc.rightsfechado
dc.sourceWOS
dc.subjectLamb Wave
dc.subjectWavelet
dc.subjectStructural Health Monitoring
dc.subjectPiezoelectric
dc.subjectMultisensor Arrangement
dc.titleAn Effective Structural Health Monitoring Methodology For Damage Isolation Based On Multisensor Arrangements
dc.typeArtículos de revistas


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