Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/66380
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dc.titleVibration control of composite plates via optimal placement of piezoelectric patches
dc.contributor.authorQuek, S.T.
dc.contributor.authorWang, S.Y.
dc.contributor.authorAng, K.K.
dc.date.accessioned2014-06-17T08:27:27Z
dc.date.available2014-06-17T08:27:27Z
dc.date.issued2003-04
dc.identifier.citationQuek, S.T.,Wang, S.Y.,Ang, K.K. (2003-04). Vibration control of composite plates via optimal placement of piezoelectric patches. Journal of Intelligent Material Systems and Structures 14 (4-5) : 229-245. ScholarBank@NUS Repository.
dc.identifier.issn1045389X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/66380
dc.description.abstractA simple optimal placement strategy of piezoelectric sensor/actuator (S/A) pairs for vibration control of laminated composite plate is presented, where the active damping effect under a classical control framework is maximized using the finite element approach. The classical direct pattern search method is employed to obtain the local optimum, where two optimization performance indices based on modal and system controllability are studied. The start point for the pattern search is selected based on the maxima of integrated normal strains consistent with the size of the collocated piezoelectric patches used. This would maximize the virtual work done by the equivalent actuation forces along the strain field of an initial state. Numerical simulation using a cantilevered and a clamped composite square plate illustrate the effectiveness of the proposed strategy, where the results coincide with the global optimal layout from exhaustive search for both modal and system controllability indices. The number of trials to reach the optimal position is few compared to an initial blind discrete pattern search approach. The reduced control effectiveness of both plates under constrained input voltages is illustrated.
dc.sourceScopus
dc.subjectComposite plates
dc.subjectGlobal optimum
dc.subjectPattern search method
dc.subjectPiezoelectric sensors and actuators
dc.subjectPlacement optimization
dc.subjectVibration control
dc.typeArticle
dc.contributor.departmentCIVIL ENGINEERING
dc.description.sourcetitleJournal of Intelligent Material Systems and Structures
dc.description.volume14
dc.description.issue4-5
dc.description.page229-245
dc.description.codenJMSSE
dc.identifier.isiutNOT_IN_WOS
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