Results 21 to 30 of about 57,747 (310)

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

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

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

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

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

Oral Bisphosphonates and Risk of Atrial Fibrillation and Flutter in Women: A Self-Controlled Case-Series Safety Analysis [PDF]

open access: yes, 2009
Background: A recent trial unexpectedly reported that atrial fibrillation, when defined as serious, occurred more often in participants randomized to an annual infusion of the relatively new parenteral bisphosphonate, zoledronic acid, than among those ...
Aroon Hingorani   +14 more
core   +1 more source

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

Adaptive control of a nonlinear aeroelastic system [PDF]

open access: yes, 2011
Aeroelastic two-dimensional wing section with both trailing-edge (TE) and leading-edge (LE) was investigated in this paper through numerical simulation in time domain.
Shijun Guo   +5 more
core   +1 more source

Aeroelastic Numerical Simulation of 2 DoF Sectional Model of Long Span Bridge to Determine Flutter Instability Characteristics

open access: yesMedia Komunikasi Teknik Sipil
Flutter is an aerodynamic instability on a long span bridge that can cause damage to the entire bridge deck structure. The interaction between wind and structure in long span bridges can be investigated by numerical simulation.
sulistiya sulistiya   +3 more
doaj   +1 more source

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