Augmented Aircraft Performance by the use of 2 Morphing Technology for a Turboprop Regional Aircraft Wing 4

Amélioration des performances par l'emploi de la technologie du morphing pour une aile d'avion de transport régional turbopropulsé

Frédéric Moens (1)

1 DAAA, ONERA, Université Paris Saclay (COmUE) [Meudon]

This article presents some application of the morphing technology for aerodynamic performance improvement of turboprop regional aircraft. It summarizes the results obtained in the framework of Clean Sky 2 REG-IADP AIRGREEN2 program on the development and application of dedicated morphing devices for take-off and landing, and their uses in off design conditions. The wing of the reference aircraft configuration considers Natural Laminar Flow characteristics. A deformable leading edge morphing device (“drooped nose”) and a multi functional segmented flap system have been considered. For the drooped nose, the use of deformable compliant structure was considered, as it allows a “clean” leading edge when not used, which is mandatory to keep NLF properties at cruise. The use of a segmented flap makes possible to avoid external flap track fairings, which will lead to performance improvement at cruise. An integrated tracking mechanism is used to set the flap at its take-off optimum setting, and then, morphing is applied in order to obtain high performance level for landing. Finally, some performance improvements can be obtained in climb conditions by using the last segment of the flap system to modify the load distribution on the wing in order to recover some extended laminar flow on the wing upper surface.

Mots clés: MORPHING; DROOPED NOSE; FLAP; NLF WING

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

Frédéric Moens. Augmented Aircraft Performance by the use of 2 Morphing Technology for a Turboprop Regional Aircraft Wing 4. 2019. ⟨hal-02262363⟩