Results 261 to 270 of about 80,941 (296)

Flutter Analysis Using Quasi-Steady Time-Domain Flutter Derivatives

IABSE Reports, 2019
<p>To be able to perform nonlinear flutter analyses for bridges, time‐domain approaches should be used instead of Scanlan’s formulation of self‐excited forces. Thus, this paper addresses the development and validation of a modified quasi‐steady time‐domain model similar to Scanlan’s approach that is based on the velocity and acceleration of the ...
Sébastien Maheux, Sébastien Langlois, Frédéric Légeron   +2 more
openaire   +1 more source

Wavelet Approach to Flutter Data Analysis

Journal of Aircraft, 2002
A wavelet-based method is presented to analyze flight flutter test data. The procedure utilizes the filter action of the continuous wavelet transform to enable damping estimation. An indication of the overall stability is obtained from changes in the shape of the wavelet transform amplitude cross sections.
Staszewski, W. J., Cooper, J. E.
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Complex Notation in Flutter Analysis

Journal of Structural Engineering, 1999
Flutter analysis in aircraft or bridge engineering has to include motion-induced aerodynamic forces. These forces are mathematically described in two equivalent ways, namely, by real number or complex number expressions. Accordingly, flutter analysis can be performed using either real or complex arithmetic.
Chun S. Cai, Pedro Albrecht, Uwe Starossek   +2 more
openaire   +1 more source

Flutter analysis of Stonecutters Bridge

Wind and Structures, 2006
Stonecutters Bridge of Hong Kong is a cable-stayed bridge with two single-column pylons each 298 m high and an aerodynamic twin deck. The total length of the bridge is 1596 m with a main span of 1018 m. The top 118 m of the tower will comprise structural steel and concrete composite while the bottom part will be of reinforced concrete.
Michael C.H. Hui, Q.S. Ding, Y.L. Xu
openaire   +1 more source

Flutter analysis including structural uncertainties

Meccanica, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bueno, Douglas D., GÓes, Luiz C. S., Gonçalves, Paulo José Paupitz   +2 more
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Flutter analysis of advanced turbopropellers

AIAA Journal, 1983
The two-dimensional subsonic cascade unsteady aerodynamic theory of Jones and Rao (1975) has been modified to account for the variable sweep angles of the blades of advanced turbopropellers. The aerodynamics and the structural modal properties have been formally integrated to determine the generalized aerodynamic coefficients matrix for the blade modes.
V. ELCHURI, G. SMITH
openaire   +1 more source

Finite element analysis of Supersonic panel flutter

International Journal for Numerical Methods in Engineering, 1973
INTRODUCTION The finite element method is a powerful tool to solve static and dynamic problems of structural analysis. Its application to flutter analysis can be envisaged in two ways. It can be used to obtain a more accurate modal shape of complex structures which in turn are introduced in traditional methods.
Sander, G., Bon, C., Geradin, M.
openaire   +1 more source

Stochastic Flutter Analysis

2006
Aerospace Materials ...
Verhoosel, C.V. (author), Gutiérrez, M.A. (author), Hulshoff, S.J. (author)   +2 more
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Nonlinear analysis of flutter

2008
Flutter is an aerolastic phenomenon that makes structures oscillate when surrounded by a moving fluidum. Flutter can lead to fatigue and/or failure on the wings, flaps and fuselage of an airplane. Laborious testing needs to be done on aircraft to ensure safe operation within a certain flight envelope.
Van De Walle, Mattijs, Schoukens, Joannes, Vanlanduit, Steve   +2 more
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Modal analysis of cantilever plate flutter

Journal of Fluids and Structures, 2013
Abstract This study illustrates the mechanism of modal coupling in cantilever plate flutter using the full Theodorsen airfoil theory within the linear framework. An accurate, pseudo-spectral method is employed to calculate the fluid loading and the eigenvalue problem is solved numerically following the Galerkin procedure.
Huang, L, ZHANG, C
openaire   +3 more sources