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Flatternachweis von Brücken mittels Finiter Balkenelemente
Citation Link: https://doi.org/10.15480/882.352
Other Titles
Flutter prediction for bridges by means of finite beam elements
Publikationstyp
Journal Article
Date Issued
1992
Sprache
German
Author(s)
Starossek, Uwe
Institut
TORE-DOI
Journal
Volume
61
Issue
7
Start Page
203
End Page
208
Citation
Stahlbau 61 (1992), 7, S. 203-208
Publisher
Ernst
Wind-induced flutter of bridges with streamlined, plate-like cross-section occurs as coupled torsional and vertical oscillation. Prediction can possibly be facilitated by representing the spatial system by a generalized 2-DOF system. This, however, may be unadmissible or extremely conservative if the modes of torsional and vertical vibration differ strongly. In this case, flutter prediction should be based on spatial modeling. Classical methods of aircraft engineering for solving the spatial problem proceed from partial differential equations of motion. For applications in bridge engineering, the finite-element concept proves more efficient. In this paper, two beam elements of differenct complexity are defined, and correspondend matrices are given. Formulation and solution of the resulting MDOF equations of motion is described. Results of a numerical study are presented and discussed.
DDC Class
620: Ingenieurwissenschaften
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