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dc.contributor.authorTjirkallis, A.en
dc.contributor.authorKyprianou, Andreasen
dc.creatorTjirkallis, A.en
dc.creatorKyprianou, Andreasen
dc.description.abstractOver the last three decades, there have been increasing demands to develop and deploy Structural Health Monitoring (SHM) systems for engineering structures in service. Since these structures are subjected to varying environmental and operational conditions, reliable SHM methodologies must be capable of not misattributing to damage changes due to environmental conditions. This paper presents a novel damage detection methodology based on the similarity between maxima decay lines of the continuous wavelet transform scalogram of the structural responses obtained under different operational and environmental conditions. The normalized cross correlation (NCC) is used as a measure of this similarity. In addition, the pointwise summation of similar Wavelet Transform Modulus Maxima (WTMM) decay lines is used to identify changes due to the presence of damage from different force realizations and/or varying environmental conditions. The effectiveness of the proposed methodology is demonstrated using a simulated 3DOF system and an experimental cantilever beam. © 2015 Elsevier Ltd. All rights reserved.en
dc.sourceMechanical Systems and Signal Processingen
dc.subjectDamage detectionen
dc.subjectContinuous Wavelet Transformen
dc.subjectEngineering structuresen
dc.subjectEnvironmental conditionsen
dc.subjectNormalized cross correlationen
dc.subjectOperational conditionsen
dc.subjectStructural health monitoringen
dc.subjectStructural health monitoring (SHM)en
dc.subjectVarying environmental conditionsen
dc.subjectVarying operational conditionsen
dc.subjectWavelet transform modulus maximaen
dc.subjectWavelet transformsen
dc.subjectWTMM decay lineen
dc.titleDamage detection under varying environmental and operational conditions using Wavelet Transform Modulus Maxima decay lines similarityen
dc.description.endingpage297Πολυτεχνική Σχολή / Faculty of EngineeringΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering
dc.contributor.orcidKyprianou, Andreas [0000-0002-5037-2051]

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