Results 21 to 30 of about 69,349 (295)

Stall Flutter Control of a Smart Blade Section Undergoing Asymmetric Limit Oscillations

open access: yesShock and Vibration, 2016
Stall flutter is an aeroelastic phenomenon resulting in unwanted oscillatory loads on the blade, such as wind turbine blade, helicopter rotor blade, and other flexible wing blades.
Nailu Li   +4 more
doaj   +1 more source

The Effect of Laminated Layers on the Flutter Speed of Composite Wing

open access: yesJournal of Engineering, 2023
The paper presents an investigation to the flutter speed of composite wing for different ply orientation. Structurally the composite wing was idealized as a composite beam load carrying structure. Theodorsen’s expression was used to get the 2- dimension
Ahmed Abd Al-Hussain Ali   +1 more
doaj   +1 more source

The effect of laminate lay-up on the flutter speed of composite wings. [PDF]

open access: yes, 2003
This paper presents an analytical study on optimization of a laminated composite wing structure for achieving a maximum flutter speed and a minimum weight without strength penalty.
Guo, Shijun J.   +2 more
core   +1 more source

Suppression of Bridge Flutter Using Suction Control

open access: yesAdvances in Civil Engineering, 2021
To verify the effectiveness of the suction-based method for improving flutter stability of long-span bridges, the forced vibration experiments for extracting the flutter derivatives of a section model with and without suction were performed, and the ...
Shibo Tao
doaj   +1 more source

Flutter Regularity of Flying Wing Configuration with All-Moving Wing Tip

open access: yes气体物理, 2023
The performance requirements of modern fighters meet multiple targets such as high speed, high mobility, stealth, lightweight and so on. The aircraft with a tailless flying wing configuration has the advantages of high aerodynamic efficiency, good ...
Wei-ji WANG   +4 more
doaj   +1 more source

Computation of Aerodynamic Damping for Flutter Analysis of a Transonic Fan [PDF]

open access: yes, 2011
This paper describes the computational analysis of aerodynamic damping for prediction of flutter characteristics of a transonic fan stage that consists of a highly loaded rotor along with a tandem stator.
Parthasarathy Vasanthakumar   +1 more
core   +1 more source

Diaphragmatic flutter [PDF]

open access: yesPostgraduate Medical Journal, 1977
Summary A case is reported of diaphragmatic flutter with an unusually long duration of symptoms. The patient described demonstrates many of the classical features of this disorder.
openaire   +2 more sources

Flutter Reliability Analysis of Xiangshan Harbor Highway Cable-Stayed Bridges in Service

open access: yesApplied Sciences, 2022
With the development of bridge structures towards being light weight and having a large span , the overall flexibility, and, hence, wind sensitivity, of the bridge increases.
Tian Zhang   +4 more
doaj   +1 more source

All of a flutter [PDF]

open access: yesCurrent Biology, 2003
The fluttering flight of butterflies is characteristic of these insects but belies the fact that most species are competent or strong fliers with several members carrying out spectacular migrations. However, new work by a team led by Angel Viloria based at the Natural History Museum in London, report in the Proceedings of the Royal Society published ...
openaire   +2 more sources

Flagmill -A new power generator utilizing flexible sheet-

open access: yesJournal of Fluid Science and Technology, 2015
The present study proposes “a flagmill”, which is a new power generator utilizing the flutter of a flexible sheet such as a flag. The sheet flutter causes the angular oscillation of the supporting pole. Since the supporting pole is connected to the power
Donghyuk KANG   +2 more
doaj   +1 more source

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