The main objective of this research is to study the capability of Piezoelectric (PE) self-sensing actuators to suppress the transonic wing-box flutter, which is a flow-structure interaction phenomenon. The unsteady general frequency modified Transonic Small Disturbance (TSD) equation is used to model the transonic flow about the wing. The wing-box structure and the piezoelectric actuators are modeled using the equivalent plate method, which is based on the first-order shear deformation plate theory (FSDPT). The piezoelectric actuators are used as diagonal-links. The optimal electromechanical-coupling conditions between the piezoelectric actuators and the wing are collected from previous work. Three main different control strategies; Linear Quadratic Gaussian (LQG) which combines the Linear Quadratic Regulator (LQR) with the Kalman Filter Estimator (KFE), Optimal Static Output Feedback (SOF), and Classic Feedback Controller (CFC); are studied and compared. The optimum actuators and sensors locations are determined using the Norm of Feedback Control Gains (NFCG) and Norm of Kalman Filter Estimator Gains (NKFEG), respectively. A genetic algorithm (GA) optimization technique is used to calculate the controller and estimator parameters to achieve a target response.


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    Titel :

    Wing box transonic-flutter suppression using piezoelectric self-sensing diagonal-link actuators


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2011


    Format / Umfang :

    13 Seiten, 26 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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    Guan, D. / Chen, W.-m. / Li, M. et al. | British Library Online Contents | 2000


    Flutter Control of Wing Boxes Using Piezoelectric Actuators

    Edwin E. Forster / Henry T. Y. Yang | AIAA | 1998



    Active Suppression of Nonlinear Stall Flutter Using Piezoelectric Actuators

    Li, X. / Fleeter, S. / American Institute of Aeronautics and Astronautics et al. | British Library Conference Proceedings | 1996