Mitigating whirl flutter in a tiltrotor aircraft includes providing at least one control surface supported for movement relative to a pylon attached to the aircraft's wing; providing an actuator for moving the control surface relative to the pylon; providing at least one sensor system to sense at least one deformation mode of the wing tip; providing a control system having one or more inputs and one or more output signals; using an electrical signal relating to deformation of the wing tip to serve at least as the basis for at least one of the inputs to the control system; determining at least one output signal of the control system based at least in part on the electrical signal relating to deformation; and controlling the actuator based at least in part on the output signal of the control system to move the control surface so as to counteract the deformation.
ACTIVE WING TIPS FOR TILTROTOR WHIRL FLUTTER STABILITY AUGMENTATION
2019-08-15
Patent
Electronic Resource
English
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