FLUTTER SUPPRESSION BY ACTIVE CONTROL

The use of active control techniques for flutter suppression is an attractive research field and numerous programs have been conducted or are still in progress worldwide. The model investigated is that of a two-degree of freedom system dynamically controlled through a trailing-edge flap, with linear accelerometers serving as sensors. Extensive experiments in the wind tunnel have proven the validity of the concept both in suppressing flutter and in diminishing the aeroelastic vibration induced by the flow turbulence.