Results 11 to 20 of about 69,349 (295)

Flutter behaviour of composite aircraft wings [PDF]

open access: yes, 1999
This research work presents series of investigations into the structural dynamics and dynamic aeroelastic (flutter) behaviour of composite and metal wings.
Ashawesh, Gamal Mohamed
core   +7 more sources

Comment améliorer l’enseignement et les apprentissages ?

open access: yesRevue Internationale d’Éducation de Sèvres, 2006
From a survey conducted in the United-Kingdom, the author shows how the Student Voice movement has developed in schools and has allowed to understand students and the way they learn in a more subtle and refined way.
Julia Flutter
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

Experimental Investigations on Nonlinear Flutter Behaviors of a Bridge Deck with Different Leading and Trailing Edges

open access: yesApplied Sciences, 2020
Recently, the nonlinear flutter behavior of long-span suspension bridges has attracted attention. Unlike the classical theory of bridge flutter, the stable limit cycle oscillations (LCO) have occurred for some bluff aerodynamic configurations when the ...
Wenjie Li, Shujin Laima
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

Nonlinear Flutter Analysis of Rudder System Containing Freeplay [PDF]

open access: yesHangkong bingqi
The nonlinear flutter of vehicle rudder system significantly impacts its stability and safety. This paper conducts modeling and computation of linear and nonlinear flutter in missile rudder systems containing freeplay, analyzes the mechanisms of ...
Zhang Kaimin, Deng Xueya, Chen Liye
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

Numerical investigation of the effects of pedestrian barriers on aeroelastic stability of a proposed footbridge [PDF]

open access: yes, 2004
A numerical investigation into the aerodynamic characteristics and aeroelastic stability of a proposed footbridge across a motorway in the north of England has been undertaken.
Vezza, M.   +6 more
core   +3 more sources

Flutter analysis of the IAR 99 SOIM aircraft [PDF]

open access: yesINCAS Bulletin, 2013
Flutter analysis is considered for the minimum altitude at which the minimum designed Mach number is achieved, for the maximum altitude at which the maximum designed dynamic pressure is obtained and for the minimum altitude at which transonic effects ...
Dorin LOZICI-BRINZEI   +2 more
doaj   +1 more source

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