32th Congress of the International Council of the Aeronautical Sciences

06.2 - Flight Dynamics and Control (UAV related)

NEW ROLL-SPIRAL COUPLING MODE CRITERION FOR HIGH-SPEED VEHICLES

G.H. Dou¹, Y.J. Yang¹, A.L. Gong¹, W.J. Zhou¹; ¹China Academy of Aerospace Aerodynamics, China

Roll-spiral coupling mode may take place on high speed vehicles, so when the coupling mode happens is a valuable content. Most of the conclusions about the coupling mode are based on the assumption of low angle of attack, which are not applicable for large angle of attack. In this paper, a new coupling criterion is deduced, considering angle of at-tack, while influences of aerodynamic parameters on the coupling mode is analyzed.


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