An attempt is made in this work to develop an observer-based modal H 2 -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 H 2 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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Observer-Based H2-Robust Controller for Active Vibration Control of Laminated Composite Plates with an Optimally Placed IDE-PFC Actuator


    Contributors:
    Ghosh, S. (author) / Sahu, A. (author) / Bhattacharya, P. (author)

    Published in:

    Publication date :

    2015-11-04




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown