Innovative streamline‐flow preserving actuation strategies for wing airfoil nose

Abstract

Purpose

The purpose of this paper is to focus on a morphing architecture, conceived to produce droop nose effect, thus preserving high lift performance and laminar flow.

Design/methodology/approach

A numerical approach was adopted. On the base of preliminary aerodynamic requirements, the main aspects of the actuation architecture were defined and then assessed through a genetic approach.

Findings

Two different working modalities of mentioned architecture were identified: the former implying the use of an actuator, the latter taking advantage of a tailored elastic element, able to actuate morphing under the action of aerodynamic loads, without the aid of actuators.

Research limitations/implications

The research presented in this work refers to an optimisation process currently tailored on preliminary aerodynamic requirements (leading edge vertical displacement maximisation, leading edge radius increase).

Originality/value

The research shows the possibility of producing morphing on the leading edge zone, actuating droop nose effect on metallic (constant and pice wise thickness) and composite skins.

Citation

Tomassetti, G., Ameduri, S. and Carozza, A. (2011), "Innovative streamline‐flow preserving actuation strategies for wing airfoil nose", International Journal of Structural Integrity, Vol. 2 No. 4, pp. 437-457. https://doi.org/10.1108/17579861111183939