Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Effect of the structural coupling on the flutter onset of a sector of low pressure turbine vanes
Year:2010
Research Areas
  • Aeronautical engineering
Information
Abstract
The effect of the structural coupling in the aeroelastic stability of a packet of low-pressure turbine vanes is studied in detail. The dynamics of a 3D sector vane is reduced to that of a simplified mass-spring model to enhance the understanding of its dynamics and to perform sensitivity studies. It is concluded that the dynamics of the simplified model retains the basic features of the finite element three-dimensional model. A linear fully coupled analysis in the frequency domain of the 3D vane sector has been conducted. It is concluded that the small structural coupling provided by the casing and the inter-stage seal is essential to explain the experimental evidences. It is shown that the use of fully coupled methods is necessary to retain the mode interaction that takes place in this type of configurations.
International
Si
Congress
ASME Turbo Expo 2010
960
Place
Reviewers
Si
ISBN/ISSN
978-0-7918-3872-3
Start Date
14/06/2010
End Date
18/06/2010
From page
1
To page
12
Effect of the structural coupling on the flutter onset of a sector of low pressure turbine vanes
Participants
  • Autor: Carlos Martel Escobar (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
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