Results 31 to 40 of about 135,451 (244)

Flutter Mechanism of a Thin Plate Considering Attack Angles

open access: yesApplied Sciences
It is well known that the flutter performance of a section is sensitive to the changing wind angles of attack. Exploring the thin plate’s flutter mechanism under different angles of attack is excellent, which helps understand inner flutter ...
Chengjun Yan, Qi Wang, Bo Wu, Lin Huang
doaj   +1 more source

Three dimensional flutter analysis and wind-tunnel experiments of a rectangular sheet supported by a wire (Influence of eccentricity on the flutter characteristics and occurrence condition)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This paper deals with the flutter analysis of a rectangular sheet supported by a wire in axial flow. In the flutter analysis, Doublet-Point Method based on unsteady lifting surface theory is used to calculate the unsteady fluid force acting on the sheet ...
Keiichi HIROAKI, Masahiro WATANABE
doaj   +1 more source

Flutter Boundary Prediction of a Two Dimensional Airfoil in Transonic Flight Regime with the Preset Angles of Attack [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
Angle of attack has impact on transonic flow filed and aerodynamic force, but most of current researches on flutter use zero angle hypothesis, which has no consideration about angle of attack.

doaj   +1 more source

Effects of Mass Attachments on Flutter Characteristics of Thin-Walled Panels

open access: yesAerospace, 2022
Mass attachments may exist in the design and use of an aircraft panel, such as sensor layout, internal wiring, surface icing, etc. These mass attachments can change the flutter characteristics of the panel in supersonic flight and have important impacts ...
Wuchao Qi, Meng Wang, Sumei Tian
doaj   +1 more source

Flutter suppression for the active flexible wing: Control system design and experimental validation AIAA-92-2097 [PDF]

open access: yes, 1992
The synthesis and experimental validation of a control law for13; an actiqe flutter suppression system for the Active Flexible13; Wing wind-tunnel model is presenied. The design was13; accomplished with traditional root locus and Nyquist methods13; using
Srinathkumar, S, Waszak, Martin R
core   +1 more source

Flutter Optimization of Large Swept-Back Tri-Wing Flight Vehicles

open access: yesAerospace, 2023
The aerodynamic configuration of large swept-back tri-wings is generally adopted for hypersonic vehicles, but the structural stiffness of the ailerons is weak, which may lead to damage due to the flutter behavior.
Weiji Wang   +3 more
doaj   +1 more source

Flutter of Darrieus wind turbine blades: Correlation of theory and experiment [PDF]

open access: yes, 1981
Flutter analysis of two wind turbines was correlated with experimental data for flutter of Darrieus ...
Ham, N. D.
core   +1 more source

Experimentally determined flutter from two- and three-bladed model bearingless rotors in hover [PDF]

open access: yes, 1985
A series of experiments was performed on a 1.8-m-diam model rotor in hover for the principal purpose of investigating the lead-lag stability of isolated bearingless rotors.
Bousman, W. G., Dawson, S.
core   +1 more source

Healthcare utilization and clinical outcomes after catheter ablation of atrial flutter. [PDF]

open access: yesPLoS ONE, 2014
Atrial flutter ablation is associated with a high rate of acute procedural success and symptom improvement. The relationship between ablation and other clinical outcomes has been limited to small studies primarily conducted at academic centers. We sought
Thomas A Dewland   +2 more
doaj   +1 more source

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