Results 31 to 40 of about 7,826 (224)

Special Issue: Adaptive/Smart Structures and Multifunctional Materials with Application to Morphing Aircraft

open access: yesAerospace, 2014
Recent advances in smart structures and multifunctional materials have facilitated many novel aerospace technologies such as morphing aircraft. A morphing aircraft, bio-inspired by natural fliers, has gained a lot of interest as a potential technology to
Rafic Ajaj
doaj   +1 more source

Conceptual study of a morphing winglet based on unsymmetrical stiffness [PDF]

open access: yes, 2016
Morphing technology has the potential to increase aircraft performance. Among the morphing technologies, the morphing winglet is a promising solution due to its small size and large effect on the aerodynamics. Morphing winglets have to carry the spanwise
Ajaj   +38 more
core   +1 more source

Dynamic Modeling and Active Morphing Trajectory-Attitude Separation Control Approach for Gull-Wing Aircraft

open access: yesIEEE Access, 2017
Morphings are usually used for aircrafts to achieve a better performance in variable environment, whereas this paper focuses on how to achieve a trajectory-attitude separation control effect with an active morphing strategy.
Tianhao Guo, Zhongxi Hou, Bingjie Zhu
doaj   +1 more source

Integrated Design of a Morphing Winglet for Active Load Control and Alleviation of Turboprop Regional Aircraft

open access: yesApplied Sciences, 2021
Aircraft winglets are well-established devices that improve aircraft fuel efficiency by enabling a higher lift over drag ratios and lower induced drag. Retrofitting winglets to existing aircraft also increases aircraft payload/range by the same order of ...
Ignazio Dimino   +5 more
doaj   +1 more source

State-of-the-art in aerodynamic shape optimisation methods [PDF]

open access: yes, 2018
Aerodynamic optimisation has become an indispensable component for any aerodynamic design over the past 60 years, with applications to aircraft, cars, trains, bridges, wind turbines, internal pipe flows, and cavities, among others, and is thus relevant ...
Skinner, S.N., Zare-Behtash, H.
core   +1 more source

Active Flow Control at Low Reynolds Numbers by Periodic Airfoil Morphing [PDF]

open access: yes, 2016
This paper investigates the application of a periodically deforming airfoil surface for the purpose of flow control at low Reynolds numbers. A physical model has been fabricated by bonding Macro Fiber Composite (MFC) actuators to the underside of a NACA ...
Debiasi, M   +3 more
core   +1 more source

Optimization and design of an aircraft’s morphing wing-tip demonstrator for drag reduction at low speed, Part I – Aerodynamic optimization using genetic, bee colony and gradient descent algorithms [PDF]

open access: yes, 2017
In this paper, an ‘in-house’ genetic algorithm is described and applied to an optimization problem for improving the aerodynamic performances of an aircraft wing tip through upper surface morphing.
Acotto, J   +7 more
core   +5 more sources

Design of a Morphing Wing-tip [PDF]

open access: yes, 2014
An initial design of a morphing wing-tip for a Regional Jet aircraft is developed and evaluated. The adaptive wing-tip concept is based upon a chiral type internal structure, enabling controlled cant angle orientation, camber and twist throughout the ...
Allen, N. J.   +10 more
core   +6 more sources

Analysis of Motion Characteristics of Bionic Morphing Wing Based on Sarrus Linkages

open access: yesApplied Sciences, 2022
The variant aircraft can flexibly change its shape to achieve the best sports performance under different flight environments and flight missions. Changing the shape of the wings is a major form of variant aircraft.
Zhong Yun   +3 more
doaj   +1 more source

The mechanics of composite corrugated structures: A review with applications in morphing aircraft [PDF]

open access: yes, 2015
Corrugation has long been seen as a simple and effective means of forming lightweight structures with high anisotropic behaviour, stability under buckling load and energy absorption capability.
Dayyani, I.   +3 more
core   +1 more source

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