Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
BRIDGE WINDSHIELD DESIGN TO AVOID AEROELASTIC PHENOMENA
Year:2014
Research Areas
  • Mechanical aeronautics and naval engineering
Information
Abstract
Since in 1940 the Tacoma Narrows Bridge was destroyed by the wind, aeroelastic instabilities have been recognized as one of the most challenging aspects of bridge design. They can produce long-term fatigue failure through vortex induced vibrations, or sudden collapse through self-excited flutter. These vibrations may also cause discomfort for the users and temporary closure of the bridge. Wind tunnel studies are a very helpful tool to understand these phenomena. By means of them, the critical wind speed at which vortex induced vibration and flutter appear can be precisely determined and the design of the bridge can be reconsidered in the early steps of the process. In this paper, an optimum design of the bridge section is sought. One of the most relevant parameters that influence the stability of a certain deck is the porosity of the barriers. Section model tests have been carried out to find whether an optimum value of the porosity of the barrier exists. This value or range of values must present neither vortex induced vibration nor flutter.
International
Si
Congress
15th European Bridge Conference
960
Place
Edinburgh, Scotland
Reviewers
Si
ISBN/ISSN
094764475X
Start Date
08/07/2014
End Date
09/07/2014
From page
1
To page
9
European Bridge Conference 15th International Conference
Participants
  • Autor: Mikel Ogueta Gutiérrez (IDR-UPM)
  • Autor: Sebastian Nicolas Franchini Longhi (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Desarrollo y Ensayos Aeroespaciales
  • Centro o Instituto I+D+i: Instituto Universitario de Microgravedad "Ignacio da Riva"
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