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Descripción
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| 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 | |
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Internacional
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Si |
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Nombre congreso
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14th International Symposium on Unsteady Aerodynamics, Aeroacoustics & Aeroelasticity of Turbomachines ISUAAAT14 |
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Tipo de participación
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960 |
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Lugar del congreso
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Estocolmo, >Suecia |
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Revisores
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Si |
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ISBN o ISSN
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0000000000000 |
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DOI
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Fecha inicio congreso
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08/09/2015 |
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Fecha fin congreso
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11/09/2015 |
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Desde la página
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1 |
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Hasta la página
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9 |
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Título de las actas
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Proceedings of the 14th International Symposium on Unsteady Aerodynamics, Aeroacoustics & Aeroelasticity of Turbomachines ISUAAAT14 |