TILT ROTOR FLAP WHIRL STABILITY CONTROL WITH HUB SHEAR FEEDBACK FOR HIGH SPEED AIRCRAFT

摘要

Systems and methods of operating a tiltrotor aircraft (100) include providing a control system (200) that includes sensors (204, 206) and/or gauges (208) that provide feedback regarding hub shear forces in rotor systems (108) of the aircraft (100) that produce aeroelastic instability known as whirl flutter. Feedback from the sensors (204, 206) and/or gauges (208) is communicated to a flight control subsystem (202) that includes an algorithm that provides a cascading set of responses to control whirl flutter and a failsafe that adjusts operational characteristics of the aircraft (100) in response to the continuation or excitation of the whirl flutter.