Bail, Thomas R.2011-08-052011-08-051997-04-21etd-3210192049721391http://hdl.handle.net/10919/9573Flutter suppression is a problem of considerable interest in modern avionics. Flutter is a vibration caused by energy in the airstream being absorbed by a non-rigid wing. Active control is one possible method of suppressing flutter. However, due to unmeasurable aerodynamic-lag states, developing an active control using full-state feedback is not viable. The use of a state-estimator is a more practical way of developing active controllers. In this paper we investigate two control methods using state-estimators. We also use simple models of disturbances to test attenuation and robustness of each control method. Finally, a method of quantitative robust analysis is reviewed and then applied to each of the controlled systems.ETDIn CopyrightLQGHfluttersingular valuesThesishttp://scholar.lib.vt.edu/theses/available/etd-3210192049721391