27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-5.3.3

ANALYTICAL STUDY OF STABILITY OF WING ROCK MODELS

R. M. U. Entz, L. G. N. Correa, F. D. Marques, F. M. Catalano, R. Cosin
Univ. of São Paulo, Brazil

Keywords: wing rock, stability criterion, non-linear dynamics, flight mechanics, energy model

Slender wings are capable of producing vortex lift at high angles of attack. This seemingly beneficial feature is however susceptible to wing rock. An analytical investigation of the phenomenon leads to a stability criterion capable of determining the boundaries for a feedback gain in order to suppress the effect.

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