Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Transverse galloping of two-dimensional bodies having a rhombic cross-section
Year:2014
Research Areas
  • Mechanical aeronautics and naval engineering
Information
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.
International
Si
JCR
Si
Title
Journal of Sound And Vibration
ISBN
0022-460X
Impact factor JCR
1,857
Impact info
Volume
333
10.1016/j.jsv.2014.02.030
Journal number
From page
2855
To page
2865
Month
JUNIO
Ranking
Participants
  • Autor: Ana Dulce Consuelo Ibarra Velazquez (UPM)
  • Autor: Felix Sorribes Palmer (UPM)
  • Autor: Gustavo Alonso Rodrigo (UPM)
  • Autor: Jose Meseguer Ruiz (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Desarrollo y Ensayos Aeroespaciales
  • Departamento: Sistemas Aeroespaciales, Transporte Aéreo y Aeropuertos
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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