Wavelet packet based damage detection in beam-like structures without baseline modal parameters

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dc.contributor.author Mikami, S en
dc.contributor.author Beskhyroun, Sherif en
dc.contributor.author Oshima, T en
dc.date.accessioned 2011-10-28T00:41:17Z en
dc.date.issued 2011 en
dc.identifier.citation Structure and Infrastructure Engineering 7(3):211-227 2011 en
dc.identifier.issn 1573-2479 en
dc.identifier.uri http://hdl.handle.net/2292/8483 en
dc.description.abstract In this paper, a new approach for damage detection in beam-like structures is presented. The method can be used without the need for baseline modal parameters of the undamaged structure. Another advantage of the proposed method is that it can be implemented using a small number of sensors. In the proposed technique, the measured dynamic signals are decomposed into the wavelet packet decomposition (WPD) components, the power spectrum density (PSD) of each component is estimated and then a damage localisation indicator is computed to indicate the structural damage. The proposed method is firstly illustrated with a simulated beam and the identified damage is satisfactory with assumed damage. Then, the method is applied to a steel beam. The effect of damage location and the effects of wavelet type and the decomposition level are examined. The results show that the proposed method has great potential in crack detection of beam-like structures. en
dc.language EN en
dc.publisher TAYLOR & FRANCIS LTD en
dc.relation.ispartofseries Structure and Infrastructure Engineering en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. http://www.sherpa.ac.uk/romeo/issn/1573-2479/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.subject damage detection en
dc.subject wavelet transform en
dc.subject vibration data en
dc.subject health monitoring en
dc.subject TRANSFORMS en
dc.title Wavelet packet based damage detection in beam-like structures without baseline modal parameters en
dc.type Journal Article en
dc.identifier.doi 10.1080/15732470802334795 en
pubs.issue 3 en
pubs.begin-page 211 en
pubs.volume 7 en
dc.rights.holder Copyright: TAYLOR & FRANCIS LTD en
pubs.end-page 227 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 234895 en
dc.identifier.pii 909030778 en
pubs.record-created-at-source-date 2011-10-28 en

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