Control of forward swept wing configurations dominated by flight-dynamic/aeroelastic interactionsAn active control system concept for an aeroelastic wind-tunnel model of a statically unstable FSW configuration with wing-mounted stores is developed to provide acceptable longitudinal flying qualities while maintaining adequate flutter speed margin. On FSW configurations, the inherent aeroelastic wing divergence tendency causes strong flight-dynamic/aeroelastic interactions that in certain cases can produce a dynamic instability known as body-freedom flutter (BFF). The carriage of wing-mounted stores is shown to severely aggravate this problem. The control system developed combines a canard-based SAS with an Active Divergence/Flutter Suppression (ADFS) system which relies on wing-mounted sensors and a trailing-edge device (flaperon). Synergism between these two systems is exploited to obtain the flying qualities and flutter speed objectives.
Document ID
19840060637
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rimer, M. (Grumman Aerospace Corp. Bethpage, NY, United States)
Chipman, R. (Grumman Aerospace Corp. Bethpage, NY, United States)
Muniz, B. (Grumman Aerospace Corp. Bethpage, NY, United States)