Online Control Design for Learn-To-Fly

Snyder, Steven M ; Bacony, Barton ; Morelli, Eugene ; Frost, Susan ; Teubert, Christopher ; Okolo, Wendy

关键词: CONTROLLERS;    REAL TIME OPERATION;    AERODYNAMIC CHARACTERISTICS;    CONTROL SYSTEMS DESIGN;    DESIGN ANALYSIS;    FLIGHT TESTS;   

RP-ID  :  NF1676L-28603

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Two methods were developed for online control design as part of a flight test e ort to examine the feasibility of the NASA Learn-to-Fly concept. The methods use an aerodynamic model of the aircraft that is being identified in real-time onboard the aircraft to adjust the control parameters. One method employs adaptive nonlinear dynamic inversion, whereas the other consists of a classical autopilot structure. E ects from the interaction between the realtime modeling and the developed control laws are discussed. The Learn-to-Fly concept has been deemed feasible based on successful flights of both a stable and unstable aircraft.