Abstract:
The sustained increase of the air transportation sector over the last decades has led to traffic saturated situations, inducing higher costs for airlines and important negative impacts for airport surrounding communities. The efficient management of air traffic supposes that aircraft trajectories are fully mastered and their impacts can be accurately forecasted. Inversion of aircraft flight dynamics, which are essentially nonlinear, appears necessary. Aircraft flight dynamics is shown to be differentially flat, which is a property that I has enabled the development of new numerical tools for the management of complex nonlinear dvnamic systems. I However, since in the case of aircraft flight dynamics this differential flatness property is implicit, a neural I network is introduced to deal with its numerical inversion. Results related to the developed neural network I training are displaved, while potential uses of the proposed tool are discussed.
Keywords:
Neural networks; Differential flatness; Aircraft flight dynamics
Full text available only in PDF format.
REFERENCES
- Fliess, M. et al., 1995, "Flatness and defect of non-linear systems: theory and examples", International Journal of Control, Vol. 61, No. 6, pp. 1327-1361.
- Haykin, S., 1994, "Neural Networks, a Comprehensive Foundation", Macmillan Publishing Company, N.J.
- Lavigne, L. et al., 2003, "Modeling of Longitudinal Disturbed Aircraft Model by Flatness Approach", in AIAA Guidance, Navigation, and Control Conference and Exhibit, Texas Austin, USA.
- Lévine, J., 2011, "On necessary and suíficient conditions for differential flatness", Applicable Álgebra in Engineering, Communication and Computing, Vol. 22, No. 1, pp. 47-90.
- Lu, W.C., 2005, "Contribution au Suivi Automatique de Trajectoires par un Avion: Commande Plate et Réseaux de Neurones", Ph.D. Thesis, École Nationele de 1'Aviation Civile, France.
- Lu, W.C. et al., 2004, "Flight Mechanics and Differential Flatness", in DINCON 2004, Ilha Solteira, Brazil, pp. 830-839.
- Lu, W.C. et al., 2008, "Neural Guidance Control for Aicraft Based on Differential Flatness", AIAA Journal of Guidance, Control and Dynamics, Vol. 31, No. 4, pp. 892-898.
- Martin, P., 1992, "Contribution à 1'étude des systèmes différentiels plats", Ph.D. Thesis, École des Mines de Paris, France.
- Mora-Camino, F., 1993, "Avionique", lecture notes, ENAC.
- Schmidt, L.V., 1998, "Introduction to Aircraft Flight Dynamics", AIAA Educati on Series.
Publication Dates
-
Publication in this collection
Apr-Jun 2012
History
-
Received
27 Jan 2012 -
Accepted
20 Mar 2012
