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dc.contributor.authorMujica Delgado, Luis Eduardo
dc.contributor.authorTibaduiza Burgos, Diego Alexander
dc.contributor.authorRodellar Benedé, José
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III
dc.date.accessioned2011-04-06T11:04:26Z
dc.date.available2011-04-06T11:04:26Z
dc.date.created2010
dc.date.issued2010
dc.identifier.citationMujica, L.; Tibaduiza, D.; Rodellar, J. Data-driven multiactuator piezoelectric system for structural damage localization. A: World Conference on Structural Control and Monitoring. "Fifth World Conference on Structural Control and Monitoring (5WCSCM): Tokyo, Japan: 12-14 july 2010". Shinjuku-Tokio: 2010, p. 1-13.
dc.identifier.urihttp://hdl.handle.net/2117/12279
dc.description.abstractIn initial studies, it has been shown that the combination of Principal Component Analysis (PCA) and the contribution plots of Q and T2-statistics can be considered an efficient technique to detect, distinguish and localize damages in structures that are equipped with several piezoelectric transducers (PZT’s). In those previous works, the specimen (aircraft turbine blade) was excited using just one of the set of PZT’s bounded on the surface. This paper studies the advantage of using the whole set of PZT’s as actuators as well as sensors. An active piezoelectric system is developed. At each phase of the diagnosis procedure, one PZT is used as actuator (a known electrical signal is applied) and the others are used as sensors (collecting the wave propagated through the structure at different points). A data-driven model for undamaged structure is built applying PCA to the data collected by several experiments. The current structure (damaged or not) is subjected to the same experiments, and the collected data are projected into the baseline PCA model. The indices Q, T2, ϕ and I determine whether the structure is healthy or not. In addition, the contribution of each sensor to these indices supplies information about the localization of the damage.
dc.format.extent1 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures
dc.subjectÀrees temàtiques de la UPC::Energies::Energia elèctrica
dc.subject.lcshPiezoelectricity
dc.subject.lcshStructural health monitoring
dc.titleData-driven multiactuator piezoelectric system for structural damage localization
dc.typeConference lecture
dc.subject.lemacTransductors piezoelèctrics
dc.subject.lemacEstructures, Teoria de les
dc.contributor.groupUniversitat Politècnica de Catalunya. CoDAlab - Control, Modelització, Identificació i Aplicacions
dc.relation.publisherversionhttp://www.bridge.t.u-tokyo.ac.jp/WCSCM5/
dc.rights.accessOpen Access
local.identifier.drac4983066
dc.description.versionPostprint (published version)
local.citation.authorMujica, L.; Tibaduiza, D.; Rodellar, J.
local.citation.contributorWorld Conference on Structural Control and Monitoring
local.citation.pubplaceShinjuku-Tokio
local.citation.publicationNameFifth World Conference on Structural Control and Monitoring (5WCSCM): Tokyo, Japan: 12-14 july 2010


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Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain