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Descripción
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| The Asymptotic Mistuning Model (AMM) is a recently introduced simplified method for the analysis of mistuning effects in the vibration characteristics of bladed disks. It is derived directly from the full mistuned bladed disk using an asymptotic expansion that exploits the smallness of the mistuning and the damping. The results from the AMM have been previously successfully verified using a simple 1-D mass-spring model. In this paper we validate the accuracy of AMM for the prediction of the effect of mistuning in realistic configurations. To this end, we perform a quantitative comparison between theAMMresults and those from a detailed finite element method (FEM) numerical simulation of a complete mistuned bladed disk, for several mistuning patterns and forcing conditions. We also emphasize and comment the useful information provided by the AMM about the essential mechanisms involved in the mistuning effects on the vibration of cyclic structures. | |
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Internacional
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Si |
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Nombre congreso
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ASME Turbo Expo 2010 |
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Tipo de participación
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960 |
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Lugar del congreso
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Revisores
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Si |
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ISBN o ISSN
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978-0-7918-3872-3 |
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DOI
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Fecha inicio congreso
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14/06/2010 |
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Fecha fin congreso
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18/06/2010 |
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Desde la página
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1 |
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Hasta la página
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10 |
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Título de las actas
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Quantitative validation of the Asymptotic Mistuning Model using a High Fidelity bladed disk |