Results 21 to 30 of about 34,676 (314)

Three dimensional flutter analysis and wind-tunnel experiments of slender webs in cross flow

open access: yesNihon Kikai Gakkai ronbunshu, 2017
This paper presents a three dimensional flutter analysis of slender webs under tension in cross flow. In the flutter analysis, Doublet-point method based on the unsteady lifting surface theory is used to calculate unsteady fluid force acting on the web ...
Keiichi HIROAKI   +2 more
doaj   +1 more source

Research Progress and Prospect of Thermal Flutter of Hypersonic Vehicles

open access: yesHangkong gongcheng jinzhan, 2022
Hypersonic vehicle is subjected to severe aerodynamic load and aerodynamic heating during the flight.Thus structural dynamic stability and response caused by aerodynamic force and aerodynamic heating should be fully considered in the design process of ...
CHEN Haoyu   +3 more
doaj   +1 more source

Research on the Flutter Stability of Bridge Sections Based on an Empirical Formula of an Aerostatic Three-Component Coefficient

open access: yesBuildings, 2022
In order to study the relationship between an aerostatic three-component coefficient (ATCC) and bridge flutter and to quickly evaluate the flutter performance of bridges, we proposed a method based on the empirical formula of the ATCC.
Hui Gao   +4 more
doaj   +1 more source

Flutter prediction, suppression and control in aircraft composite wings as a design prerequisite: a survey [PDF]

open access: yes, 2007
Emergence of flutter compromises not only the long-term durability of the wing structure, but also the operational safety, flight performance and energy efficiency of the aircraft. Effectual means of flutter prevention are, therefore, mandatory in the
Njuguna, James A. K.
core   +1 more source

CFD-Based Aeroelastic Sensitivity Study of a Low-Speed Flutter Demonstrator

open access: yesAerospace, 2019
The goal of developing aircraft that are greener, safer and cheaper can only be maintained through significant innovations in aircraft design. An integrated multidisciplinary design approach can lead to an increase in the performance of future derivative
Vladyslav Rozov   +4 more
doaj   +1 more source

Supersonic Flutter of Circular Cylindrical Shells [PDF]

open access: yes, 1966
Various experimental and theoretical studies on the supersonic flutter of circular cylindrical shells are discussed. Results of experiments in the Mach number range 2.5 - 3.5 are presented.
Olson, Mervyn Daniel
core   +1 more source

Research on Feature Extracted Method for Flutter Test Based on EMD and CNN

open access: yesInternational Journal of Aerospace Engineering, 2021
Due to the inevitable deviations between the results of theoretical calculations and physical experiments, flutter tests and flutter signal analysis often play significant roles in designing the aeroelasticity of a new aircraft.
Hua Zheng   +3 more
doaj   +1 more source

The high efficiency and accuracy prediction analysis of the flutter envelope

open access: yesHangkong gongcheng jinzhan, 2023
It is significant to efficiently and accurately determine the flutter boundary of various aircraft configura-tions in the aircraft design. In this paper, the linear unsteady aerodynamic method and nonlinear unsteady aerody-namic method are adopted for ...
CHENG Fang, LI Junjie
doaj   +1 more source

Association of typical atrial flutter and cavotricuspid isthmus ablation on clinical recurrence after cryoballoon ablation for atrial fibrillation

open access: yesFrontiers in Cardiovascular Medicine, 2023
Typical atrial flutter commonly occurs in patients with atrial fibrillation (AF). Limited information exists regarding the effects of concurrent atrial flutter on the long-term outcomes of rhythm control.
Joo Hee Jeong   +17 more
doaj   +1 more source

FLUTTER ANALYSIS OF BLISKS WITH FRICTION RING DAMPERS [PDF]

open access: yesProceedings of Global Power & Propulsion Society, 2022
Aeroelastic flutter is a phenomenon when blades experience an aeroelastic selfexcitation from the surrounding air resulting in the full destruction of aeroengines. It poses a big challenge for aeroengine bladeddisks design, especially for integrally bladeddisks (blisks).
Sun, Yekai, Yuan, Jie, Salles, Loïc
openaire   +4 more sources

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