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Design and Flight Testing of Incremental Nonlinear Dynamic Inversion based Control Laws for a Passenger Aircraft

Grondman, Fabian (2018) Design and Flight Testing of Incremental Nonlinear Dynamic Inversion based Control Laws for a Passenger Aircraft. Masterarbeit, Delft University of Technology.

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Kurzfassung

This paper describes the design, implementation and flight testing of flight control laws based on Incremental Nonlinear Dynamic Inversion (INDI). The method compares commanded and measured accelerations to compute increments on the current control deflections. This results in highly robust control solutions with respect to model uncertainties as well as changes in aircraft dynamic characteristics of failure cases during flight. At the same time, the complexity of the algorithms is similar to classical ones. The key for practical implementation is in ensuring synchronization between angular acceleration and control detection measurements or estimates. The underlying theory and practical design methods of INDI are very well understood, but implementation and testing has remained limited to sub-scale UAVs. The main contribution of this paper is to present the design and validation of manual attitude control functions for a Cessna Citation II experimental aircraft, covering control structure design, application of INDI, design optimization, robustness analyses, software implementation, ground and flight testing. For comparison, also control laws based on classical Nonlinear Dynamic Inversion were implemented and flown. The flight tests were highly successful and marked the first successful demonstration of INDI on a CS-25 certified aircraft. The flight test results proved that INDI clearly outperforms NDI and provided valuable lessons-learnt for future applications.

elib-URL des Eintrags:https://elib.dlr.de/125862/
Dokumentart:Hochschulschrift (Masterarbeit)
Titel:Design and Flight Testing of Incremental Nonlinear Dynamic Inversion based Control Laws for a Passenger Aircraft
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Grondman, FabianGertjan.Looye (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:28 September 2018
Referierte Publikation:Nein
Open Access:Nein
Seitenanzahl:152
Status:veröffentlicht
Stichwörter:Incremental control, nonlinear control, flight control, flight testing, adaptive control, fault tolerant control, nonlinear dynamic inversion
Institution:Delft University of Technology
Abteilung:Faculty of Aerospace Engineerging
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - Systeme und Kabine (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Systemdynamik und Regelungstechnik > Flugzeug-Systemdynamik
Hinterlegt von: Looye, Dr. Gertjan
Hinterlegt am:11 Jan 2019 10:25
Letzte Änderung:12 Jul 2019 13:29

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