Results 11 to 20 of about 49,450 (147)

Optimal design and numerical analysis of a morphing flap structure [PDF]

open access: yes, 2012
Over the next few years the aviation industry will face the challenge to develop a new generation of air vehicles characterised by high aerodynamic efficiency and low environmental impact.
Di Matteo, Natalia
core   +7 more sources

Analysis of composite wing structures with a morphing leading edge [PDF]

open access: yes, 2011
One of the main challenges for the civil aviation industry is the reduction of its environmental impact. Over the past years, improvements in performance efficiency have been achieved by simplifying the design of the structural components and using ...
Morishima, Ryoko
core   +7 more sources

Kinematic Simulation and Structure Analysis of a Morphing Flap [PDF]

open access: yes, 2013
This thesis presents a study on the design and analysis of a morphing flap structure integrated with actuation mechanism for potential application to large aircraft.
Guo, Shixian
core   +7 more sources

Optimization and Design of a Flexible Droop Nose Leading Edge Morphing Wing Based on a Novel Black Widow Optimization (B.W.O.) Algorithm—Part II

open access: yesDesigns, 2022
This work presents an aerodynamic and structural optimization for a Droop Nose Leading Edge Morphing airfoil as a high lift device for the UAS-S45. The results were obtained using three optimization algorithms: coupled Particle Swarm Optimization-Pattern
Musavir Bashir   +5 more
doaj   +1 more source

Near Stall Unsteady Flow Responses to Morphing Flap Deflections

open access: yesFluids, 2021
The unsteady flow characteristics and responses of an NACA 0012 airfoil fitted with a bio-inspired morphing trailing edge flap (TEF) at near-stall angles of attack (AoA) undergoing downward deflections are investigated at a Reynolds number of 0.62 × 106 ...
Chawki Abdessemed   +2 more
doaj   +1 more source

Shape Morphing Using PDE Surfaces [PDF]

open access: yes, 2006
YesA methodology for shape morphing using partial differential equation (PDE) surfaces is presented in this work. The use of the PDE formulation shows how shape morphing can be based on a boundary-value approach by which intermediate shapes can be ...
Willis, P.   +3 more
core   +4 more sources

Aerodynamic Shape Optimisation of a Camber Morphing Airfoil and Noise Estimation

open access: yesAerospace, 2022
In order to decrease the emitted airframe noise by a two-dimensional high-lift configuration during take-off and landing performance, a morphing airfoil has been designed through a shape design optimisation procedure starting from a baseline airfoil (NLR
Robert Valldosera Martinez   +2 more
doaj   +1 more source

Alleviation of Dynamic Stall Moments by Morphing Flap

open access: yesHangkong gongcheng jinzhan, 2021
Active deflection of trailing edge control surface can reduce the adverse effect of airfoil dynamic stall on aerodynamic characteristics.This study set out to investigate the performance of morphing flap on dynamic stall alleviation.
OUYANG Yan   +3 more
doaj   +1 more source

Investigation of a Morphing Wing Capable of Airfoil and Span Adjustment Using a Retractable Folding Mechanism

open access: yesAerospace, 2019
The presented aircraft is capable of alternating between two singular working points by folding the exterior surfaces of the wing underneath the interior surfaces. This allows for a significant change in wingspan, lift surfaces, aspect ratio and airfoil (
Amit Geva, Haim Abramovich, Rimon Arieli
doaj   +1 more source

Robust Algorithm Software for NACA 4-Digit Airfoil Shape Optimization Using the Adjoint Method

open access: yesApplied Sciences, 2023
Optimizing the aerodynamic shape of an airfoil is a critical concern in the aviation industry. The introduction of flexible airfoils has allowed the shape of the airfoil to vary, depending on the flight conditions. Therefore, in this study, we propose an
Naser Tanabi   +3 more
doaj   +1 more source

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