Observatorio de I+D+i UPM

Memorias de investigación
Book chapters:
ASYMPTOTIC DESCRIPTION OF MAXIMUM MISTUNING AMPLIFICATION OF BLADED DISK FORCED RESPONSE
Year:2008
Research Areas
  • Naval engineering
Information
Abstract
The problem of determining the maximum forced response vibration amplification that can be produced just by the addition of a small mistuning to a perfectly cyclical bladed disk still remains not completely clear. In this paper we apply a recently introduced perturbation methodology, the Asymptotic Mistuning Model (AMM), to determine which are the key ingredients of this amplification process, and to evaluate the maximum mistuning amplification factor that a given modal family with a particular distribution of tuned frequencies can exhibit. A more accurate upper bound for the maximum forced response amplification of a mistuned bladed disk is obtained from this description, and the results of the AMM are validated numerically using a simple mass-spring model.
International
Si
Book Edition
0
Book Publishing
ISBN
0-7918-3824-2
Series
Book title
ASME Turbo Expo 2008
From page
1
To page
12
Participants
  • Autor: Roque Corral (ITP)
  • Autor: Carlos Martel Escobar (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
  • Departamento: Fundamentos Matemáticos de la Tecnología Aeronáutica
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