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Proceedings Paper

Toward the bi-modal camber morphing of large aircraft wing flaps: the CleanSky experience
Author(s): R. Pecora; F. Amoroso; M. Magnifico
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Paper Abstract

The Green Regional Aircraft (GRA), one of the six CleanSky platforms, represents the largest European effort toward the greening of next generation air transportation through the implementation of advanced aircraft technologies. In this framework researches were carried out to develop an innovative wing flap enabling airfoil morphing according to two different modes depending on aircraft flight condition and flap setting: - Camber morphing mode. Morphing of the flap camber to enhance high-lift performances during take-off and landing (flap deployed); - Tab-like morphing mode. Upwards and downwards deflection of the flap tip during cruise (flap stowed) for load control at high speed and consequent optimization of aerodynamic efficiency. A true-scale flap segment of a reference aircraft (EASA CS25 category) was selected as investigation domain for the new architecture in order to duly face the challenges posed by real wing installation issues especially with reference to the tapered geometrical layout and 3D aerodynamic loads distributions. The investigation domain covered the flap region spanning 3.6 m from the wing kink and resulted characterized by a taper ratio equal to 0.75 with a root chord of 1.2 m. High TRL solutions for the adaptive structure, actuation and control system were duly analyzed and integrated while assuring overall device compliance with industrial standards and applicable airworthiness requirements.

Paper Details

Date Published: 16 April 2016
PDF: 12 pages
Proc. SPIE 9801, Industrial and Commercial Applications of Smart Structures Technologies 2016, 980106 (16 April 2016); doi: 10.1117/12.2218415
Show Author Affiliations
R. Pecora, Univ. degli Studi di Napoli Federico II (Italy)
F. Amoroso, Univ. degli Studi di Napoli Federico II (Italy)
M. Magnifico, Univ. degli Studi di Napoli Federico II (Italy)


Published in SPIE Proceedings Vol. 9801:
Industrial and Commercial Applications of Smart Structures Technologies 2016
Steven F. Griffin, Editor(s)

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