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.
Forced Response of Mistuned Bladed Disks: Quantitative Validation of the Asymptotic Description
Journal of Propulsion and Power ; 30 , 2 ; 397-406
01.03.2014
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Forced Response of Mistuned Bladed Disks: Quantitative Validation of the Asymptotic Description
Online Contents | 2014
|Mistuning Forced Response Characteristics Analysis of Mistuned Bladed Disks
Online Contents | 2010
|Forced Response of Mistuned Bladed Disks Using Reduced-Order Modeling
British Library Conference Proceedings | 1996
|Coriolis Forces in Forced Response Analysis of Mistuned Bladed Disks
Online Contents | 2007
|