NDLI: $H^{∞}Hover-to-Cruise$ Conversion for a Tilt-Wing Rotorcraft

Content Provider	IEEE Xplore Digital Library
Author	Dickeson, J.J. Mix, D.R. Koenig, J.S. Linda, K.M. Cifdaloz, O. Wells, V.L. Rodriguez, A.A.
Copyright Year	2005
Description	Author affiliation: MS in Electrical Engineering. (Dickeson, J.J.)
Abstract	This paper describes the development of robust, multi-variable H∞ control systems for the conversion of the High-Speed Autonomous Rotorcraft Vehicle (HARVee), an experimental tilt-wing aircraft. Tilt-wing rotorcraft combine the high-speed cruise capabilities of a conventional airplane with the hovering capabilities of a helicopter by rotating their wings at the fuselage. Changing between cruise and hover flight modes in mid-air is referred to as the conversion process, or simply conversion. A nonlinear aerodynamic model was previously developed that captures the unique dynamics of the tilt-wing aircraft. An $H^{∞}design$ methodology was used to develop cruise and hover control systems because it directly addresses multi-variable and robust design issues. The development of these control systems was governed not only by performance specifications at each particular operating point, but also by the unique requirements of a gain-scheduled conversion control system. The cruise and hover control designs form the basis for the conversion control system. The performance of the resulting conversion closed-loop systems is analyzed in the frequency and time domains. A tilt-wing rotorcraft Modeling, Simulation, Animation, and Real-Time Control (MoSART) software environment provides 3D visualization of the vehicle’s dynamics. The environment is useful for conceptualizing the natural rotorcraft dynamics and for gaining an intuitive understanding of the closed-loop system performance.
Starting Page	6486
Ending Page	6491
File Size	565629
Page Count	6
File Format	PDF
ISBN	0780395670
DOI	10.1109/CDC.2005.1583202
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-15
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	IEEE/EUCA
Subject Keyword	Control systems Aerodynamics Vehicle dynamics Robust control Aircraft Remotely operated vehicles Mobile robots Aerospace control Airplanes Helicopters
Content Type	Text
Resource Type	Article

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