Results 31 to 40 of about 1,744,450 (275)

Wing Folding in the Hymenoptera

open access: yesAnnals of the Entomological Society of America, 1988
Longitudinal folding (plaiting) of forewings at rest has arisen independently in Vespidae, Colletidae, Gasteruptiidae, Figitidae, Leucospidae, and Pompilidae. In the first five families the plaiting fold is similar in position, but in the last family its position is different.
Danforth, Bryan N., Michener, Charles D.
openaire   +1 more source

UNFOLDING PERFORMANCE OF FOLDING WING FOR ACTUATOR AND EXPERIMENT

open access: yesJixie qiangdu, 2017
In order to study the parameters of a folding wing‘s spreading performance which is used on the guided missile’s actuator,the unfolding performance was researched.
LIU DuanChen   +4 more
doaj   +1 more source

Wing Stiffness and Hinge Release Threshold Effects on Folding Wingtip Gust Load Alleviation

open access: yesAIAA SCITECH 2022 Forum, 2022
An aeroelastic wind tunnel experiment to identify the influence of the wing stiffness and hinge release threshold on the gust load alleviation performance of a folding wingtip design is presented in this study.
Xavier Carrillo   +5 more
semanticscholar   +1 more source

A Parametric Study on the Aeroelasticity of Flared Hinge Folding Wingtips

open access: yesAerospace, 2021
This paper presents a parametric study on the aeroelasticity of cantilever wings equipped with Flared Hinge Folding Wingtips (FHFWTs). The finite element method is utilized to develop a computational, low-fidelity aeroelastic model. The wing structure is
Rafic M. Ajaj   +3 more
doaj   +1 more source

Folded wing mechanism for flying car [PDF]

open access: yesAIP Conference Proceedings, 2020
Over the decades, transportation was used in order to move a person or an object from point A to B. There are few types of transportation has been used until now, one of them is Car. Is one of the most popular transportation because is simple, efficient, and enough to travel with distance.
Bintang Samodro Wartojo   +1 more
openaire   +1 more source

Design and Aerodynamic Analysis of Flapping Mechanism of Two-stage Flapping-wing Aircrafts

open access: yesJixie chuandong, 2022
In order to improve the flight performance of the flapping-wing aircraft, this study draws on the characteristics of the flight movement of large birds, designs a new two-stage foldable bionic flapping-wing mechanism, and establishes the kinematic and ...
Sheng Dian   +3 more
doaj  

Calculation of the Hinge Moments of a Folding Wing Aircraft during the Flight-Folding Process

open access: yesInternational Journal of Aerospace Engineering, 2019
A folding wing morphing aircraft should complete the folding and unfolding process of its wings while in flight. Calculating the hinge moments during the morphing process is a critical aspect of a folding wing design.
Hao Xu   +3 more
doaj   +1 more source

Interpolation-Based Modeling Methodology for Efficient Aeroelastic Control of a Folding Wing

open access: yesInternational Journal of Aerospace Engineering, 2021
The aeroelastic model of a folding wing varies with different configurations, so it actually represents a parameter-varying system. Firstly, a new approach based on interpolation of local models is proposed to generate the linear parameter-varying model ...
Chengyu Yue, Yonghui Zhao
semanticscholar   +1 more source

Simultaneous optimisation of earwig hindwings for flight and folding

open access: yesBiology Open, 2016
Earwig wings are highly foldable structures that lack internal muscles. The behaviour and shape changes of the wings during flight are yet unknown. We assume that they meet a great structural challenge to control the occurring deformations and prevent ...
Julia Deiters   +2 more
doaj   +1 more source

Wing-folding in Drosophila

open access: yesAnimal Behaviour, 1981
Uploaded by Plazi for TaxoDros. We do not have abstracts.
openaire   +2 more sources

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