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Memorias de investigación
Communications at congresses:
FORCED RESPONSE VIBRATION AMPLITUDE OF MISTUNED BLADED DISKS WITH AERODYNAMIC DAMPING
Year:2015
Research Areas
  • Aeronautical engineering
Information
Abstract
Mistuning can dramatically increase the forced response of a bladed disk. In the case of damping coming from aerody- namic effects the situation is more complicated, and the effect of mistuning can be the reduction of the maximum response be- low that of the tuned case. In this paper the Asymptotic Mistun- ing Model (AMM) methodology is used to analyze this situation. The AMM is a reduced model that is systematically derived from the complete mistuned bladed disk dynamical model using a per- turbative procedure based on the smallness of the mistuning and the damping. Several different forcing cases are analyzed, and the results from the AMM are quantitatively compared with those from the numerical simulation of a complete mistuned bladed disk. The AMM gives information about the key mechanisms in- volved in the forced response of mistuned cyclic structures, and about the maximum amplification of the vibration amplitude that the system can experience
International
Si
Congress
14th International Symposium on Unsteady Aerodynamics, Aeroacoustics & Aeroelasticity of Turbomachines ISUAAAT14
960
Place
Estocolmo, >Suecia
Reviewers
Si
ISBN/ISSN
0000000000000
Start Date
08/09/2015
End Date
11/09/2015
From page
1
To page
9
Proceedings of the 14th International Symposium on Unsteady Aerodynamics, Aeroacoustics & Aeroelasticity of Turbomachines ISUAAAT14
Participants
  • Autor: Carlos Martel Escobar (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
  • Departamento: Matemática Aplicada a la Ingeniería Aeroespacial
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)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)