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Memorias de investigación
Communications at congresses:
Quantitative validation of the Asymptotic Mistuning Model using a High Fidelity bladed disk
Year:2010
Research Areas
  • Aeronautical engineering
Information
Abstract
The Asymptotic Mistuning Model (AMM) is a recently introduced simplified method for the analysis of mistuning effects in the vibration characteristics of bladed disks. It is derived directly from the full mistuned bladed disk using an asymptotic expansion that exploits the smallness of the mistuning and the damping. The results from the AMM have been previously successfully verified using a simple 1-D mass-spring model. In this paper we validate the accuracy of AMM for the prediction of the effect of mistuning in realistic configurations. To this end, we perform a quantitative comparison between theAMMresults and those from a detailed finite element method (FEM) numerical simulation of a complete mistuned bladed disk, for several mistuning patterns and forcing conditions. We also emphasize and comment the useful information provided by the AMM about the essential mechanisms involved in the mistuning effects on the vibration of cyclic structures.
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
10
Quantitative validation of the Asymptotic Mistuning Model using a High Fidelity bladed disk
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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