Harmonic Analysis (How to define given Boundary Condition)

- May 24, 2022 at 2:23 pm
  
  shiva.maheshwari
  Subscriber
  
  I am doing a Harmonic Analysis and I came across some boundary condition for which I am unable to find options for the definition to define. It is a logarithmic sweep
  I am able to define accelerations at different frequencies but unable to find any option to define Sweep/min and total no of cycles.
- May 24, 2022 at 2:55 pm
  
  Erik Kostson
  Ansys Employee
  
  Hi
  
  Under analysis settings (harmonic analysis) in mechanical, and frequency spacing one can choose logarithmic instead of the default linear.
  
  All the best
  
  Erik
- May 25, 2022 at 7:52 am
  
  shiva.maheshwari
  Subscriber
  
  I have already selected Logarithmic spacing and given the frequency range in Analysis setting.
  And in Boundary condition I gave acceleration data w.r.t frequencies as mentioned above. But how can I define this acceleration vs freq. data as one cycle and repeat this cycle 12 times
- May 25, 2022 at 8:08 am
  
  Erik Kostson
  Ansys Employee
  
  Hi
  This is harmonic analysis there is no time really - it is in frequency domain. See our courses in dynamics/harmonic analysis to get an idea and how to use these.
  All the best
  
  Erik
- June 1, 2022 at 8:44 am
  
  shiva.maheshwari
  Subscriber
  
  I got your point that Harmonic works in frequency domain.
  Still if we don't consider the time data and if I have to repeat above given frequency vs acceleration profile 15 times then how can I do it in Harmonic?
  Or is there any other way to define it?

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