Error in Rotordynamics Analysis

- December 17, 2019 at 5:44 pm
  
  deepesh.p.gurdasani
  Subscriber
  
  I was trying to do harmonic analysis on a model. basically, I was trying for rotor dynamics analysis. Modal analysis worked fine but Harmonic analysis gives an error.
  
  Error is as followed:
  
  'Gyroscopic matrix has been activated (RefFrame = ON on the CORIOLIS command) for rotating structure dynamics. When rotor spin is input through the CMOMEGA command, the element axis must be along the spin axis of the element component'
  
  Attaching an archive. Please have a look at the model.
  
  If anyone could help regarding this?
  
  Thanks
- October 19, 2021 at 5:16 am
  
  afshintaghvaeipour
  Subscriber
  
  Hello All
  I have encountered the same problem, but in the modal analysis. did you find the answer? O anyone can help?
  
  Thanks
- October 21, 2021 at 4:59 am
  
  BenjaminStarling
  Subscriber
  
  Hi Deepesh,
  Your model has a beam element(s) that are not along the axis of rotation. This is a limitation of line elements. If you are trying to model something off-axis, you will need to do so with shell or solid elements.
- October 21, 2021 at 11:00 am
  
  peteroznewman
  Subscriber
  
  afshintaghvaeipour See Benjamin's answer above.