This paper describes the design and flight-testing of a multivariable helicopter flight control system. The system consisted of separate longitudinal and lateral controllers, each designed using H-infinity optimization. The design was based on a low-order aircraft model. The system was successfully flight-tested on a fly-by-wire research helicopter. It was considerably simpler than other H-infinity controllers tested during the same research program. It also outperformed them in most respects, achieving bandwidths of 3.7 rad/s in roll, 2.5 rad/s in pitch and 1.5 rad/s in yaw, and virtually eliminating pitch-roll coupling.
Multivariable control of the longitudinal and lateral dynamics of a fly-by-wire helicopter
Mehrgrößenregelung der longitudinalen und lateralen Dynamik eines Hubschraubers mit Flugautomatik
Control Engineering Practice ; 11 , 7 ; 781-795
2003
15 Seiten, 14 Bilder, 5 Tabellen, 27 Quellen
Aufsatz (Zeitschrift)
Englisch
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