Sökning: "bladed disk assemblies"

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1. 1. Numerical investigation of the sensitivity of forced response characteristics of bladed disks to mistuning

   Författare :Mikkel Myhre; KTH; []
   Nyckelord :aircraft engines; gas turbines; bladed disk assemblies; vibrations; high cycle fatigue; forced response; mistuning;

   Sammanfattning : Two state of the art finite element reduction techniquespreviously validated against the direct finite element method,one based on classical modal analysis and another based oncomponent mode synthesis, are applied for efficient mistunedfree vibration and forced response analysis of several bladeddisk geometries. The methods are first applied to two testcases in order to demonstrate the differences in computationalefficiency as well as to validate the methods againstexperimental data. LÄS MER