Please use this identifier to cite or link to this item: https://doi.org/10.1155/2015/290714
DC FieldValue
dc.titleDamage detection and quantification using transmissibility coherence analysis
dc.contributor.authorZhou, Y.-L
dc.contributor.authorFigueiredo, E
dc.contributor.authorMaia, N
dc.contributor.authorPerera, R
dc.date.accessioned2020-10-26T07:04:18Z
dc.date.available2020-10-26T07:04:18Z
dc.date.issued2015
dc.identifier.citationZhou, Y.-L, Figueiredo, E, Maia, N, Perera, R (2015). Damage detection and quantification using transmissibility coherence analysis. Shock and Vibration 2015 : 290714. ScholarBank@NUS Repository. https://doi.org/10.1155/2015/290714
dc.identifier.issn1070-9622
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/180121
dc.description.abstractA new transmissibility-based damage detection and quantification approach is proposed. Based on the operational modal analysis, the transmissibility is extracted from system responses and transmissibility coherence is defined and analyzed. Afterwards, a sensitive-damage indicator is defined in order to detect and identify the severity of damage and compared with an indicator developed by other authors. The proposed approach is validated on data from a physics-based numerical model as well as experimental data from a three-story aluminum frame structure. For both numerical simulation and experiment the results of the new indicator reveal a better performance than coherence measure proposed in Rizos et al., 2008, Rizos et al., 2002, Fassois and Sakellariou, 2007, especially when nonlinearity occurs, which might be further used in real engineering. The main contribution of this study is the construction of the relation between transmissibility coherence and frequency response function coherence and the construction of an effective indicator based on the transmissibility modal assurance criteria for damage (especially for minor nonlinearity) detection as well as quantification. © 2015 Yun-Lai Zhou et al.
dc.publisherHindawi Limited
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceUnpaywall 20201031
dc.subjectFrequency response
dc.subjectModal analysis
dc.subjectNumerical models
dc.subjectBetter performance
dc.subjectCoherence analysis
dc.subjectDamage indicator
dc.subjectDetection and quantifications
dc.subjectFrequency response functions
dc.subjectModal assurance criterion
dc.subjectOperational modal analysis
dc.subjectReal engineering
dc.subjectDamage detection
dc.typeArticle
dc.contributor.departmentCIVIL AND ENVIRONMENTAL ENGINEERING
dc.description.doi10.1155/2015/290714
dc.description.sourcetitleShock and Vibration
dc.description.volume2015
dc.description.page290714
dc.published.statePublished
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