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 |