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Robust autopilot design for landing a large civil aircraft in crosswind

Theis, Julian; Ossmann, Daniel; Thielecke, Frank; Pfifer, Harald

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Authors

Julian Theis

Daniel Ossmann

Frank Thielecke

Harald Pfifer



Abstract

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.

Citation

Theis, J., Ossmann, D., Thielecke, F., & Pfifer, H. (2018). Robust autopilot design for landing a large civil aircraft in crosswind. Control Engineering Practice, 76, 54-64. https://doi.org/10.1016/j.conengprac.2018.04.010

Journal Article Type Article
Acceptance Date Apr 17, 2018
Online Publication Date Apr 25, 2018
Publication Date Jul 30, 2018
Deposit Date May 16, 2018
Publicly Available Date Apr 26, 2019
Journal Control Engineering Practice
Print ISSN 0967-0661
Electronic ISSN 0967-0661
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 76
Pages 54-64
DOI https://doi.org/10.1016/j.conengprac.2018.04.010
Keywords Aircraft control ; Flight control ; Cascade control ; Control design ; Mixed sensitivity problem ; H-infinity control
Public URL https://nottingham-repository.worktribe.com/output/948542
Publisher URL https://www.sciencedirect.com/science/article/pii/S0967066118300911
Contract Date May 16, 2018

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