Engineering Mechanics

International Conference

Proceedings Vol. 9 (2003)


May 11 – 15, 2003, Svratka, Czech Republic
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2003 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 80-86246-18-3 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Influence of cross-coupling on aircraft dynamic stability
Daněk V.
pages 56 - +8p., full text

The stability of the asymmetric flight regimes, where the couplings between longitudinal and lateral aerodynamic characteristics are significantly influencing each other, is investigated here. The system matrix is enlarged by the coupling matrices. In the coupling matrices. and basic matrices., the influence of the roll angle and the side-slip angle is included. The built-up computational model was applied for investigating the dynamic stability with six degrees of freedom at the real aeroplane, where the mutual strong aerodynamic couplings of longitudinal and lateral-directional motions, caused by the interference between wing and fuselage, were demonstrated by the results from the tunnel tests. The influence of propeller and engine rotate parts of gyroscopic effect is ignored.

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