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9 - Dynamics of Very Flexible Aircraft

Published online by Cambridge University Press:  29 June 2023

Rafael Palacios  and
Carlos E. S. Cesnik
Rafael Palacios
Affiliation:
Imperial College of Science, Technology and Medicine, London
Carlos E. S. Cesnik
Affiliation:
University of Michigan, Ann Arbor
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Summary

A modelling strategy based on geometrically-nonlinear composite beams and unsteady vortex-lattice aerodynamics is introduce for the computer simulation of very flexible aircraft dynamics. The key challenges of this approach are discussed, including spatial coupling of structural and aerodynamic models and time integration schemes. This is then exemplified using numerical results on several recent prototypes of highly-efficient wings and aircraft. Finally, some of the analysis methods used in aircraft design are reviewed to incorporate the more complex physics associated to increased flexibility.

Keywords

fluid-structure interactionstime-marching algorithmsnonlinear flight dynamicslarge-amplitude vibrationsairframe design
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Dynamics of Flexible Aircraft
Coupled Flight Mechanics, Aeroelasticity, and Control
 , pp. 354 - 405
Publisher: Cambridge University Press
Print publication year: 2023

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