Finite element analysis of a bladed disc of a radial compressor

- July 21, 2019 at 9:13 am
  
  UMAIR2102
  Subscriber
  
  Calculate natural frequencies and mode shapes of the bladed disc in the rotating reference frame forharmonic index values from 2 to 8 at the normal operating conditions. For each harmonic index youshould determine and provide first 5 different frequencies and corresponding mode shapes. Do notforget to take into account the effects of the pre-stressed static state on the modal properties of thebladed disc. Compare results with the natural frequencies calculated without allowing for the pre-stressed state. Assuming that there is engine-order excitation coming from the gas flow for allharmonic indices analysed: from 2 to 8, comment on the possibility of resonance vibrations at thenormal rotation speed.
- July 21, 2019 at 10:18 am
  
  peteroznewman
  Subscriber
  
  Sounds like a great project. Do you have the geometry for the disk? Will you post the report when you are done?

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