This study presents a novel approach to parameterize the geometry of morphing trailing-edge flap that allows its aerodynamics be optimized while capturing expected structural behavior flap. is based on finite frame element method, whereby initial surface defined as structure with constraints are similar those passive skin. The shape modified by placing series distributed loads surface. method r...

Following a comparative study on shape morphing and adaptive systems to improve rotorcraft efficiency, the Green Rotorcraft consortium has selected the Gurney flap technology as demonstrator of a smart adaptive rotorblade within the Clean Sky Joint Technology Initiative [1]. The aim of such a system is to actively increase helicopter overall performance by improving lift and alleviating static ...

This paper presents initial results on the aeroacoustic and aerodynamic effects of morphing trailing-edge flap 30P30N aerofoil, over five deflections (5–25°), at an 8° angle attack a Reynolds number Re=9.2×105. The Ffowcs-Williams–Hawkings acoustic analogy estimates far-field noise, whilst flow field is solved using URANS with four-equation Transition SST model. Aerodynamic simulation data for ...

The principal aim of this paper is to investigate the numerical effects a deformable flap by means quasi-static cambering following an Airbus A320 designed prototype in Smart Morphing and Sensing European project. This able camber Electro-Mechanical Actuators (EMA) achieve high amplitude deformation up 10 cm. mechanism allows improve aerodynamic performances high-lift system during take-off fli...

Morphing aircraft structures usually introduce greater compliance into aerodynamic sections, and therefore will affect the aeroelasticity with potential risk of increased flutter. A low-fidelity model an active camber morphing wing its aeroelastic are developed in order to investigate critical speed by exploiting chord-wise dimension flexibility. Such a may be used for conceptual design, where ...

This paper aims to numerically validate the aerodynamic performance and benefits of variable camber rate morphing wings, by comparing them conventional ones with plain flaps, when deflection angles vary, assessing their D reduction or L/D improvement. Many morphing-related research works mainly focus on design mechanisms using smart materials, innovative mechanism designs through materials stru...

We present a new mechanism for passive wing morphing of flapping wings inspired by bat and bird wing morphology. The mechanism consists of an unactuated hand wing connected to the arm wing with a wrist joint. Flapping motion generates centrifugal accelerations in the hand wing, forcing it to unfold passively. Using a robotic model in hover, we made kinematic measurements of unfolding kinematics...