Abstract
An active method for enhancing the performance and improving the robustness of a decoupler pylon-mounted store flutter suppression system is presented. The proposed active decoupler pylon involves the use of a piezoceramic wafer strut as an actuator that acts as a soft spring between the wing and the store. A two degree-of-freedom typical section of an airfoil is used to represent the structural model of the wing. The circulatory component of the incompressible aerodynamic loads is modeled using an approximation to the Theodorsen function. The GBU-8/B store configuration of an F-16 aircraft is used for the analysis. A classical robust control algorithm called the loop transfer recovery method is applied to design a controller for the linear wing/store model. Some simulations are presented using singular-value Bode plots for robust stability and nominal performance analysis.
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