Accession Number : ADA131402

Title :   Development and Flight Test of an Active Flutter Suppression System for the F-4F with Stores. Part 2. Ground Tests and Subcritical Flight Tests.

Descriptive Note : Final rept. Mar 78-Mar 80,

Corporate Author : AIR FORCE WRIGHT AERONAUTICAL LABS WRIGHT-PATTERSON AFB OH

Personal Author(s) : Hoenlinger,H ; Mussman,D ; Manser,R ; Huttsell,L J

PDF Url : ADA131402

Report Date : Apr 1983

Pagination or Media Count : 156

Abstract : A flutter suppression system was developed and flight tested on an F-4F aircraft. The control law was designed 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.

Descriptors :   *External stores, *Flutter, *Suppression, *Control systems, Wings, Captive flight, Vibration, Bending, Wing body configurations, Struts, Bomb racks, Test and evaluation, Test methods, Control theory, Fighter aircraft, Jet fighters

Subject Categories : Attack and Fighter Aircraft
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE