Observer-Based -Robust Controller for Active Vibration Control of Laminated Composite Plates with an Optimally Placed IDE-PFC Actuator
Publication: Journal of Aerospace Engineering
Volume 29, Issue 3
Abstract
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.
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Published In
Journal of Aerospace Engineering
Volume 29 • Issue 3 • May 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: May 12, 2014
Accepted: Aug 26, 2015
Published online: Nov 4, 2015
Discussion open until: Apr 4, 2016
Published in print: May 1, 2016
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