Forced Response of Mistuned Bladed Disks: Quantitative Validation of the Asymptotic Description

Khemiri, Oualid and Martel Escobar, Carlos and Corral Garcia, Roque (2014). Forced Response of Mistuned Bladed Disks: Quantitative Validation of the Asymptotic Description. "Journal of Propulsion and Power", v. 30 (n. 2); pp. 397-406. ISSN 0748-4658. https://doi.org/10.2514/1.B34631.

Description

Title: Forced Response of Mistuned Bladed Disks: Quantitative Validation of the Asymptotic Description
Author/s:
  • Khemiri, Oualid
  • Martel Escobar, Carlos
  • Corral Garcia, Roque
Item Type: Article
Título de Revista/Publicación: Journal of Propulsion and Power
Date: March 2014
ISSN: 0748-4658
Volume: 30
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Fundamentos Matemáticos de la Tecnología Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The effect of small mistuning in the forced response of a bladed disk is analyzed using a recently introduced methodology: the asymptotic mistuning model. The asymptotic mistuning model is an extremely reduced, simplified model that is derived directly from the full formulation of the mistuned bladed disk using a consistent perturbative procedure based on the relative smallness of the mistuning distortion. A detailed description of the derivation of the asymptotic mistuning model for a realistic bladed disk configuration is presented. The asymptotic mistuning model results for several different mistuning patterns and forcing conditions are compared with those from a high-resolution finite element model. The asymptotic mistuning model produces quantitatively accurate results, and, probably more relevant, it gives precise information about the factors (tuned modes and components of the mistuning pattern) that actually play a role in the vibrational forced response of mistuned bladed disks.

More information

Item ID: 37740
DC Identifier: http://oa.upm.es/37740/
OAI Identifier: oai:oa.upm.es:37740
DOI: 10.2514/1.B34631
Official URL: http://arc.aiaa.org/doi/abs/10.2514/1.B34631
Deposited by: Memoria Investigacion
Deposited on: 04 Feb 2016 20:49
Last Modified: 04 Feb 2016 20:49
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