Robust autopilot design for landing a large civil aircraft in crosswind

Theis, Julian, Ossmann, Daniel, Thielecke, Frank and Pfifer, Harald (2018) Robust autopilot design for landing a large civil aircraft in crosswind. Control Engineering Practice, 76 . pp. 54-64. ISSN 0967-0661

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A comprehensive autolanding design for a representative model of a twin-engined commercial aircraft is presented in this paper. To facilitate the design task and minimize control law switching, a cascaded control structure is selected which resembles integrator chains. Classical loopshaping and robust control techniques are used to design the individual control loops. The emphasis is on providing a complete and comprehensive qualitative design strategy. The control system’s ability to safely land the aircraft despite strong crosswind in a variety of possible scenarios is demonstrated in an industry-grade verification campaign. Nonlinear Monte Carlo simulations of the airliner model are used to assess the risk of unsafe landing conditions and provide insight into the performance characteristics and limitations of the proposed control system.

Item Type: Article
Keywords: Aircraft control ; Flight control ; Cascade control ; Control design ; Mixed sensitivity problem ; H-infinity control
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
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Depositing User: Eprints, Support
Date Deposited: 16 May 2018 11:11
Last Modified: 04 May 2020 19:47

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