Novel active control technique of aircraft flaps asymmetry

Abstract This paper proposes an active monitoring strategy to control aircraft trailing-edge high-lift devices (flaps) asymmetry. A variety of system failures can cause asymmetry in the surfaces, including transmission torsion bar break down and surface actuator wear tear. The authors’ novel approach detects identifies flaps position Once failure side has been identified, activates wingtip brakes stop uncontrolled flap surface. still controlled are driven damaged braking point reduce As a result, undesired roll moment (due asymmetry) will be controlled, maneuverability after (partially) restored. proposed technique widely tested different operational conditions, using wear-free or worn-out actuators considering every scenario. behavior model is evaluated terms time response stability margin under certain operating conditions.