Publication Date:
2019-08-28
Description:
The flight path of a twin-jet transport aircraft is optimized in a microburst encounter during approach to landing. The objective is to execute an escape maneuver that maintains safe ground clearance and an adequate stall margin during the climb-out portion of the trajectory. A cost function penalizing rate of climb deviations from a nominal value and rate of elevator deflection produces qualitatively good results in a variety of microburst encounters. The optimal maneuver is a gradual pitch-up that ceases near the core of the microburst, followed by a slight reduction in pitch attitude in the tailwind area of the microburst. A minimum airspeed constraint in the optimization prevents excessive airspeed loss in very severe microbursts. The aircraft equations of motion include short-period dynamics, so that the optimization solves directly for the control surface deflections required to achieve the optimal flight paths.
Keywords:
AIRCRAFT STABILITY AND CONTROL
Type:
AIAA PAPER 92-4338
,
AIAA Atmospheric Flight Mechanics Conference; Aug 10, 1992 - Aug 12, 1992; Hilton Head Island, SC; United States
Format:
text
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