Transverse galloping of two-dimensional bodies having a rhombic cross-section

Ibarra, D. and Sorribes Palmer, Felix and Alonso Rodrigo, Gustavo and Meseguer Ruiz, José (2014). Transverse galloping of two-dimensional bodies having a rhombic cross-section. "Journal of Sound And Vibration", v. 333 ; pp. 2855-2865. ISSN 0022-460X. https://doi.org/10.1016/j.jsv.2014.02.030.

Description

Title: Transverse galloping of two-dimensional bodies having a rhombic cross-section
Author/s:
  • Ibarra, D.
  • Sorribes Palmer, Felix
  • Alonso Rodrigo, Gustavo
  • Meseguer Ruiz, José
Item Type: Article
Título de Revista/Publicación: Journal of Sound And Vibration
Date: June 2014
ISSN: 0022-460X
Volume: 333
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Aeronaves y Vehículos Espaciales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Transverse galloping is a type of aeroelastic instability characterized by oscillations perpendicular to wind direction, large amplitude and low frequency, which appears in some elastic two-dimensional bluff bodies when they are subjected to an incident flow, provided that the flow velocity exceeds a threshold critical value. Understanding the galloping phenomenon of different cross-sectional geometries is important in a number of engineering applications: for energy harvesting applications the interest relies on strongly unstable configurations but in other cases the purpose is to avoid this type of aeroelastic phenomenon. In this paper the aim is to analyze the transverse galloping behavior of rhombic bodies to understand, on the one hand, the dependence of the instability with a geometrical parameter such as the relative thickness and, on the other hand, why this cross-section shape, that is generally unstable, shows a small range of relative thickness values where it is stable. Particularly, the non-galloping rhombus-shaped prism?s behavior is revised through wind tunnel experiments. The bodies are allowed to freely move perpendicularly to the incoming flow and the amplitude of movement and pressure distributions on the surfaces is measured.

More information

Item ID: 35146
DC Identifier: http://oa.upm.es/35146/
OAI Identifier: oai:oa.upm.es:35146
DOI: 10.1016/j.jsv.2014.02.030
Official URL: http://www.sciencedirect.com/science/article/pii/S0022460X14001576
Deposited by: Memoria Investigacion
Deposited on: 12 Jun 2015 16:19
Last Modified: 12 Jun 2015 16:19
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