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

Ibarra, D.; Sorribes Palmer, Felix; Alonso Rodrigo, Gustavo y 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.

Descripción

Título: Transverse galloping of two-dimensional bodies having a rhombic cross-section
Autor/es:
  • Ibarra, D.
  • Sorribes Palmer, Felix
  • Alonso Rodrigo, Gustavo
  • Meseguer Ruiz, José
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Sound And Vibration
Fecha: Junio 2014
Volumen: 333
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Aeronaves y Vehículos Espaciales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

Más información

ID de Registro: 35146
Identificador DC: http://oa.upm.es/35146/
Identificador OAI: oai:oa.upm.es:35146
Identificador DOI: 10.1016/j.jsv.2014.02.030
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0022460X14001576
Depositado por: Memoria Investigacion
Depositado el: 12 Jun 2015 16:19
Ultima Modificación: 12 Jun 2015 16:19
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