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1 Research Bulletin / Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics

1 1998

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Application of bifurcation theory to the high angle of attack dynamics of an aircraft

Dżygadło Z., Sibilski K.

Research Bulletin / Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics

1998

nr 8

161-168

Bifurcation theory is a part of dynamical systems theory that is considering changes in the stability, lead to qualitatively different responses of the system. In the paper a study of the high angle of dynamics of an advanced trainer aircraft is Such dynamics is non-linear and it is evident that bifurcation theory can be in the analysis. The equations of motion used in this investigation assumed a rigid aircraft with movable control surfaces. Aerodynamic forces and moments found in equations of motion are valid for a region of higher angles of attack including deep stall phenomena. Results from dynamical systems are used to predict the nature of the caused by the bifurcations and the of the aircraft after a bifurcation is studied.