Results 71 to 80 of about 139,402 (244)

The effect of twist morphing on aerodynamic performance of finite wing at low Reynolds number [PDF]

open access: yesEPJ Web of Conferences
This study experimentally investigates the effect of twist morphing on the aerodynamic characteristics of a finite wing at low Reynolds numbers (Re). As the base model, a NACA 0018 airfoil with an aspect ratio of 4 is used.
Gunes Yasemin B.   +4 more
doaj   +1 more source

The Energy Benefits of the Pantograph Wing Mechanism in Flapping Flight: Case Study of a Gull [PDF]

open access: yes, 2015
Bird wings generally contain a 4-bar pantograph mechanism in the forearm that enables the wrist joint to be actuated from the elbow joint thus reducing the number of wing muscles and hence reducing the wing inertia and inertial drag.
Sattler, Gene D.
core   +2 more sources

SMA actuators for morphing wings

open access: yesPhysics Procedia, 2010
AbstractAn experimental morphing laminar wing was developed to prove the feasibility of aircraft fuel consumption reduction through enhancement of the laminar flow regime over the wing extrados. The morphing wing prototype designed for subsonic cruise flight conditions (Mach 0.2…0.3; angle of attack −1…+2∘), combines three principal subsystems: (1 ...
Brailovski, V.   +3 more
openaire   +1 more source

Drag Performance of Twist Morphing MAV Wing

open access: yesMATEC Web of Conferences, 2016
Morphing wing is one of latest evolution found on MAV wing. However, due to few design problems such as limited MAV wing size and complicated morphing mechanism, the understanding of its aerodynamic behaviour was not fully explored.
Ismail N.I.   +4 more
doaj   +1 more source

Design, development and testing of shape shifting wing model [PDF]

open access: yes, 2017
The design and development of morphing (shape shifting) aircraft wings—an innovative technology that has the potential to increase the aerodynamic efficiency and reduce noise signatures of aircrafts—was carried out.
Dakka, Sam, Ninian, Dean
core   +2 more sources

Design and Shear Analysis of an Angled Morphing Wing Skin Module

open access: yesApplied Sciences, 2022
Morphing wing skin can greatly improve the performance of aircraft by adjusting the shape of the wings according to different flight conditions. However, it is a challenge to maintain a smooth aerodynamic wing skin surface during the deformation process.
Jinrui Yu, Jiayao Ma
doaj   +1 more source

Morphing wing optimization for steady level flight

open access: yesProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2016
This paper presents the basic results of the morphing wing planform optimization of an experimental unmanned air vehicle for minimum drag at steady level flight. The aerodynamic design tool that consists of the three-dimensional panel method, two-dimensional boundary layer solution and generalized reduced gradient method-based optimization is ...
Korpe, Durmus S., Ozgen, Serkan
openaire   +2 more sources

Aerodynamics of the Cupped Wings during Peregrine Falcon’s Diving Flight [PDF]

open access: yes, 2014
During a dive peregrine falcons can reach velocities of more than 320 km/h and makes themselves the fastest animals in the world. The aerodynamic mechanisms involved are not fully understood yet and the search for a conclusive answer to this fact ...
Brücker, C., Ponitz, B., Triep, M.
core   +1 more source

New aeroelastic studies for a morphing wing

open access: yesINCAS BULLETIN, 2010
For this study, the upper surface of a rectangular finite aspect ratio wing, with a laminar airfoil cross-section, was made of a carbon-Kevlar composite material flexible skin. This flexible skin was morphed by use of Shape Memory Alloy actuators for 35 test cases characterized by combinations of Mach numbers, Reynolds numbers and angles of attack. The
Ruxandra Mihaela BOTEZ*   +2 more
openaire   +2 more sources

Variable geometry wing-box: toward a robotic morphing wing. [PDF]

open access: yes, 2021
The ability to vary the geometry of a wing to adapt to different flight conditions can significantly improve the performance of an aircraft. However, the realization of any morphing concept will typically be accompanied by major challenges. Specifically, the geometrical constraints that are imposed by the shape of the wing and the magnitude of the air ...
openaire   +1 more source

Home - About - Disclaimer - Privacy