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Analysis of UAS-S4 Éhecatl aerodynamic performance improvement using several configurations of a morphing wing technology

Published online by Cambridge University Press:  07 June 2016

O. Şugar Gabor*
Affiliation:
LARCASE (Laboratory of Applied Research in Active Controls), Avionics and Aeroservoelasticity, École de Technologie Supérieure, Department of Automated Production Engineering, Montréal, Québec, Canada
A. Koreanschi*
Affiliation:
LARCASE (Laboratory of Applied Research in Active Controls), Avionics and Aeroservoelasticity, École de Technologie Supérieure, Department of Automated Production Engineering, Montréal, Québec, Canada
R.M. Botez*
Affiliation:
Professor, Canada Research Chair in Aircraft Modeling and Simulation Technologies, LARCASE (Laboratory of Applied Research in Active Controls Avionics and Aeroservoelasticity), École de Technologie Supérieure, Department of Automated Production Engineering, Montréal, Québec, Canada

Abstract

The paper presents the results of the aerodynamic optimisation of an Unmanned Aerial System's wing using a morphing approach. The shape deformation of the wing is achieved by placing actuator lines at several positions along its span. For each flight condition, the optimal displacements are found by using a combination of the new Artificial Bee Colony algorithm and a classical gradient-based search routine. The wing aerodynamic characteristics are calculated with an efficient nonlinear lifting line method coupled with a two-dimensional viscous flow solver. The optimisations are performed at angles of attack below the maximum lift angle, with the aim of improving the Hydra Technologies UAS-S4 wing lift-to-drag ratio. Several configurations of the morphing wing are proposed, each with a different number of actuation lines, and the improvements obtained by these configurations are analysed and compared.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 2016 

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