Observatorio de I+D+i UPM

Memorias de investigación
Reports for the Public Administration:
Asymptotic description of damping mistuning effects on the forced response of turbomachinery bladed disks
Research Areas
  • Aeronautical engineering,
  • Aeroengine technologies
This is the final report of the research grant FA8655-11-1-3084 issued by the Euro- pean Office of Aerospace Research and Development. This research effort is devoted to the analysis of the effect of damping mistuning on the forced response of tur- bomachinery bladed disks using asymptotic techniques. In particular it includes: (i) the derivation of the simplified Asymptotic Mistuning Model (AMM) for the general problem of the forced response of a bladed disk with damping mistuning, starting from the full general FE model description of the vibration of the rotor, (ii) the analysis of the most frequent situations of forcing (iia) isolated, disk dominated modes and (iib) clustered, blade dominated modes, and (iii) the checking of the AMM predictions against the results form a 1 DOF per sector mass-spring system, and the computation, for both forcing cases, of the damping mistuning pattern that produces the maximum amplification of the vibration.
European Office of Aerospace Research and Development
Entity Nationality
  • Autor: Carlos Martel Escobar (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en 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)