An attempt is made in this work to develop an observer-based modal -optimal controller for active vibration control of laminated composite plates subjected to external excitation. Collocated piezoelectric patches are used as distributed sensors (polyvinylidene fluoride, PVDF) and actuators (interdigitated electrode-piezofiber composites, IDE-PFC) along with multiple point observers. The structural modal model is developed based on finite-element methodology and is coded in a MATLAB environment. Optimal positioning of the sensor/actuator pairs is evaluated based on the norm of the sensor/actuator for a few selected structural modes and the piezo patches are accordingly placed. Response analysis is then carried out for both open- and closed-loop systems, and the effectiveness of the developed model is established. Piezoelectric actuation voltage is also calculated based on the closed-loop performance of the developed system.
Observer-Based H2-Robust Controller for Active Vibration Control of Laminated Composite Plates with an Optimally Placed IDE-PFC Actuator
Journal of Aerospace Engineering ; 29 , 3
2015-11-04
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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