mu Synthesis for a Small Commercial Aircraft: Design and Simulator Validation

The potential benefits deriving from the application of modern multivariable techniques to the flight control laws design for a fly-by-wire small commercial aircraft are evaluated by means of a practical benchmark problem. For such a class of airplanes, a unified set of flying qualities requirements...

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Bibliographic Details
Published in:Journal of guidance, control, and dynamics control, and dynamics, 2004-05, Vol.27 (3), p.479-490
Main Authors: Amato, Francesco, Iervolino, Raffaele
Format: Article
Language:English
Subjects:
Aircraft design
Applied sciences
Commercial aircraft
Computer science
control theory
systems
Control theory
Control theory. Systems
Controllers
Design techniques
Engineers
Exact sciences and technology
Mu-synthesis
Robust control
Simulation
Success
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Summary:The potential benefits deriving from the application of modern multivariable techniques to the flight control laws design for a fly-by-wire small commercial aircraft are evaluated by means of a practical benchmark problem. For such a class of airplanes, a unified set of flying qualities requirements is not available; therefore, a first effort has been made to formulate a suitable set of requirements to be followed during the design phase. On the basis of such requirements, a reference dynamic model of the aircraft has been chosen. Then a model matching H-infinity control problem has been solved via the mu synthesis approach, which allows disturbance rejection and robustness specifications to be taken into account. Finally, the designed flight control laws have been evaluated by means of both numerical off-line simulations and pilot-in-the-loop simulations performed via the ground-based simulator located at the National Aerospace Laboratory in Amsterdam. The research activity has been performed within the framework of the research project Affordable Digital Fly-By-Wire Flight Control Systems funded by the IV Framework Program (1997-2000) of the European community.
ISSN:0731-5090
1533-3884
DOI:10.2514/1.10334