Type of Document	Dissertation
Author	Gade, Prasad V. N.
Author's Email Address	pgade@vt.edu
URN	etd-21198-20829
Title	Performance Enhancement and Stability Robustness of Wing/Store Flutter Suppression System
Degree	Doctor of Philosophy
Department	Engineering Science and Mechanics
Advisory Committee	Advisor Name Title Daniel J. Inman Committee Chair Eugene M. Cliff Committee Member Harley H. Cudney Committee Member Liviu Librescu Committee Member Robert A. Heller Committee Member
Keywords	wing/store flutter control active decoupler pylon robust control strategies
Date of Defense	1998-02-06
Availability	unrestricted
Abstract 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: (10/09) An updated copy of this ETD was added after there were patron reports of problems with the file.
Files	Filename       Size       Approximate Download Time (Hours:Minutes:Seconds)     28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access    etd.pdf 750.91 Kb 00:03:28 00:01:47 00:01:33 00:00:46 00:00:04   etd_2009.pdf 1.05 Mb 00:04:51 00:02:29 00:02:10 00:01:05 00:00:05

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