Modular flight control reconfiguration design and simulation

This paper describes a reconfiguring flight control algorithm for damaged aircraft based upon a modular approach. This approach combines real time physical model identification with adaptive nonlinear dynamic inversion (NDI). The sensitivity of NDI to modeling errors is eliminated here by making use...

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Bibliographic Details
Published in:Control engineering practice 2011-06, Vol.19 (6), p.540-554
Main Authors: Lombaerts, T.J.J., Chu, Q.P., Mulder, J.A., Joosten, D.A.
Format: Article
Language:English
Subjects:
Adaptative systems
Adaptive control
Aircraft
Applied sciences
Computer science
control theory
systems
Control system synthesis
Control theory. Systems
Damage
Exact sciences and technology
Failure
Fault tolerance
Faults
Identification
Inspection
Mathematical models
Modelling and identification
Modular
Nondestructive testing
Real time
Simulator
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Summary:This paper describes a reconfiguring flight control algorithm for damaged aircraft based upon a modular approach. This approach combines real time physical model identification with adaptive nonlinear dynamic inversion (NDI). The sensitivity of NDI to modeling errors is eliminated here by making use of a real time identified model of the aircraft. In failure situations, the damaged aircraft model is identified by the two step method and this updated model is supplied to the model-based adaptive NDI routine, which reconfigures for the fault in real time. Reconfiguration test results for damaged aircraft models indicate good fault handling capabilities of this fault tolerant control set-up, for component as well as structural faults. ► Adaptive control techniques are capable to recover damaged aircraft. ► The two step method identifies damaged aircraft in real time. ► The manual controller improves handling qualities and pilot workload. ► The automatic controller shows good performance. ► Practical tests with real aircraft and test pilots are recommended.
ISSN:0967-0661
1873-6939
DOI:10.1016/j.conengprac.2010.12.008