• جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 805
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     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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