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Design and simulation of fault tolerant flight control based on a physical approach

Looye, Gertjan and Lombaerts, Thomas and Chu, Qiping and Mulder, Jan Albert (2012) Design and simulation of fault tolerant flight control based on a physical approach. Aerospace Science and Technology, 23 (1), pp. 151-171. Elsevier. doi: 10.1016/j.ast.2011.07.004. ISSN 1270-9638.

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Official URL: http://www.sciencedirect.com/science/article/pii/S127096381100112X


This paper presents a study on fault tolerant flight control of a benchmark aircraft model, using a physical modular approach. Reconfiguring control is implemented by making use of adaptive nonlinear dynamic inversion for autopilot control. The weakness of classical nonlinear dynamic inversion, its sensitivity to modeling errors, is circumvented here by making use of a real-time identified physical model of the damaged aircraft. With help of the Boeing 747 benchmark simulation model, including the realistic component as well as the structural failure modes, it is possible to analyze the damage accommodation capabilities of the considered approach. In failure conditions, the damaged aircraft model is identified in real time by the two-step method and this model is applied subsequently to the model-based adaptive nonlinear dynamic inversion routine in a modular structure, which allows flight control reconfiguration on-line. Pseudo Control Hedging is included to guarantee that no unachievable reference commands are given to the system, which would otherwise result in control effector saturation. Various simulated reconfiguration test results are shown for damaged aircraft models. These results indicate satisfactory failure handling capabilities of this fault tolerant control setup, for component as well as structural failures.

Item URL in elib:https://elib.dlr.de/78983/
Document Type:Article
Title:Design and simulation of fault tolerant flight control based on a physical approach
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Looye, Gertjangertjan.looye (at) dlr.deUNSPECIFIED
Lombaerts, Thomasthomas.lombaerts (at) dlr.deUNSPECIFIED
Chu, QipingDelft University of Technology (DUT)UNSPECIFIED
Mulder, Jan AlbertDelft University of Technology (DUT)UNSPECIFIED
Date:1 December 2012
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.ast.2011.07.004
Page Range:pp. 151-171
Keywords:Aircraft; Adaptive control; Model-based control; Damage; Failure; Detection; Identification; Nonlinear; Real time; Simulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of System Dynamics and Control > Aircraft System Dynamics
Deposited By: Lombaerts, Dr Thomas
Deposited On:03 Dec 2012 09:35
Last Modified:12 Jul 2019 15:02

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