Development and Flight Test of an Active Flutter Suppression System for the F-4F with Stores. Part 3. Flight Demonstration of the Active Flutter Suppression System

A flutter suppression system was developed and flight tested on an F-4F aircraft. The control law was designed by MBB (Messerschmitt-Bolkow-Blohm GmbH) using optimal control theory to minimize the control surface motion and to provide the required stability margins. During the test it was found that...

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Bibliographic Details
Main Authors: Hoenlinger,H, Mussman,D, Manser,R, Huttsell,Lawrence J
Format: Report
Language:English
Subjects:
Aeroservoelasticity
Attack and Fighter Aircraft
Captive carry
Captive flight
Coefficients
Control systems
Control theory
External stores
F-4 aircraft
Fighter aircraft
Flight testing
Fluid Mechanics
Flutter
Jet fighters
PE62201F
Stability
Suppression
Vibration
Wings
WUAFWAL24010223
Online Access:Request full text
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Summary:A flutter suppression system was developed and flight tested on an F-4F aircraft. The control law was designed by MBB (Messerschmitt-Bolkow-Blohm GmbH) using optimal control theory to minimize the control surface motion and to provide the required stability margins. During the test it was found that the dynamic behavior of the wing-pylon-store changed considerably with excitation amplitude due to free play and preload. The active flutter suppression system worked well and provided an increase in flutter speed. See also Part 1, AD-A121 485.