Title page for ETD etd-21198-20829


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 PhD
Department Engineering Science and Mechanics
Advisory Committee
Advisor Name Title
Inman, Daniel J. Committee Chair
Cliff, Eugene M. Committee Member
Cudney, Harley H. Committee Member
Heller, Robert A. Committee Member
Librescu, Liviu 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: (10/2009) An updated copy of this ETD was added after there were patron reports of problems with the file.

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