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dc.contributor.advisor Herdman, Terry en_US
dc.contributor.advisor Rogers, Robert en_US
dc.contributor.advisor Burns, John A. en_US Bail, Thomas R. en_US 2011-08-05T14:48:05Z 2011-08-05T14:48:05Z 1997-04-21 en_US
dc.identifier.other etd-3210192049721391 en_US
dc.description.abstract Flutter 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. en_US
dc.format.medium ETD en_US
dc.publisher Virginia Tech en_US
dc.relation.haspart etd.pdf en_US
dc.rights The authors of the theses and dissertations are the copyright owners. Virginia Tech's Digital Library and Archives has their permission to store and provide access to these works. en_US
dc.source.uri en_US
dc.subject LQG en_US
dc.subject H en_US
dc.subject flutter en_US
dc.subject singular values en_US
dc.title A Disturbance-Rejection Problem for a 2-D Airfoil Exhibiting Flutter en_US
dc.type Thesis en_US
dc.contributor.department Mathematics en_US MS en_US

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