Please use this identifier to cite or link to this item:
DC FieldValue
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.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.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.subjectComposite plates
dc.subjectGlobal optimum
dc.subjectPattern search method
dc.subjectPiezoelectric sensors and actuators
dc.subjectPlacement optimization
dc.subjectVibration control
dc.contributor.departmentCIVIL ENGINEERING
dc.description.sourcetitleJournal of Intelligent Material Systems and Structures
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

Page view(s)

checked on May 17, 2019

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.