Performance Enhancement and Stability Robustness of Wing/Store Flutter Suppression System

In recent years, combat aircraft with external stores have experienced a decrease in their mission capabilities due to lack of robustness of the current passive wing/store flutter suppression system to both structured as well as unstructured uncertainties. The research program proposed here is to investigate the feasibility of using a piezoceramic wafer actuator for active control of store flutter with the goal of producing a robust feedback system that demonstrates increased performance as well as robustness to modeling errors. This approach treats the actuator as an active soft-decoupling tie between the wing and store, thus isolating the wing from store pitch inertia effects. Advanced control techniques are used to assess the nominal performance and robustness of wing/store system to flutter critical uncertainties. NOTE: (10/2009) An updated copy of this ETD was added after there were patron reports of problems with the file.

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

doctoral

Discipline thesis:degree_discipline

Engineering Science and Mechanics

Department dc:contributor.department

Engineering Science and Mechanics

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

1998

Author dc:creator

• Gade, Prasad V. N.

Chair dc:contributor.committeechair

• Inman, Daniel J.

Committee members dc:contributor.committeemember

• Librescu, Liviu
• Heller, Robert A.
• Cudney, Harley H.
• Cliff, Eugene M.

• wing/store flutter control
• active decoupler pylon
• robust control strategies

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Dc Identifier Other

etd-21198-20829

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/30339