Static and Dynamic Experimental Analysis of the Galloping Stability of Porous H-Section Beams

Gandia Agüera, Fernando and Meseguer Ruiz, José and Sanz Andres, Angel Pedro (2014). Static and Dynamic Experimental Analysis of the Galloping Stability of Porous H-Section Beams. "The Scientific World Journal (TSWJ)", v. 2014 ; pp. 1-9. ISSN 1537-744X. https://doi.org/10.1155/2014/746826.

Description

Title: Static and Dynamic Experimental Analysis of the Galloping Stability of Porous H-Section Beams
Author/s:
  • Gandia Agüera, Fernando
  • Meseguer Ruiz, José
  • Sanz Andres, Angel Pedro
Item Type: Article
Título de Revista/Publicación: The Scientific World Journal (TSWJ)
Date: August 2014
ISSN: 1537-744X
Volume: 2014
Subjects:
Faculty: E.U.I.T. Aeronáutica (UPM)
Department: Aerotecnia [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The phenomenon of self-induced vibrations of prismatic beams in a cross-flow has been studied for decades, but it is still of great interest due to their important effects in many different industrial applications. This paper presents the experimental study developed on a prismatic beam with H-section.The aim of this analysis is to add some additional insight into the behaviour of the flow around this type of bodies, in order to reduce galloping and even to avoid it. The influence of some relevant geometrical parameters that define the H-section on the translational galloping behaviour of these beams has been analysed. Wind loads coefficients have been measured through static wind tunnel tests and the Den Hartog criterion applied to elucidate the influence of geometrical parameters on the galloping properties of the bodies under consideration.These results have been completed with surface pressure distribution measurements and, besides, dynamic tests have been also performed to verify the static criterion. Finally, the morphology of the flow past the tested bodies has been visualised by using smoke visualization techniques. Since the rectangular section beam is a limiting case of the H-section configuration, the results here obtained are compared with the ones published in the literature concerning rectangular configurations; the agreement is satisfactory.

More information

Item ID: 30944
DC Identifier: http://oa.upm.es/30944/
OAI Identifier: oai:oa.upm.es:30944
DOI: 10.1155/2014/746826
Deposited by: Memoria Investigacion
Deposited on: 10 Oct 2014 15:29
Last Modified: 10 Oct 2014 15:29
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