An active method for enhancing the performance and improving the robus
tness 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 bet
ween the wing and the store. A two degree-of-freedom typical section o
f an airfoil is used to represent the structural model of the wing. Th
e circulatory component of the incompressible aerodynamic loads is mod
eled using an approximation to the Theodorsen function. The GBU-8/B st
ore configuration of an F-16 aircraft is used for the analysis. A clas
sical robust control algorithm called the loop transfer recovery metho
d is applied to design a controller for the linear wing/store model. S
ome simulations are presented using singular-value Bode plots for robu
st stability and nominal performance analysis.