I wanna get Frequency response function at Impact

- August 21, 2019 at 5:58 am
  
  JHKim
  Subscriber
  
  Hi. Im a begginer on ansys.
  
  as the tilte, I want to get Frequency response function at Impact point
  
  Maybe, I am getting only Harmonic response function at Harmonic Response as I give a nodal force at point.
  
  How can I get Impact frequency response function?
  
  when I try to find the method to get Impact response function, somebody used to Transient Structural , but I can`t find frequency response function.
  
  Please tell me how to get it
  
  Thank you.
- August 21, 2019 at 6:18 am
  
  jj77
  Subscriber
  
  For impact you need a transient dynamic analysis which is in the time domain.
  
  Then depending on the frequency response you need (say mobility) you need to take the fft (say in matlab) of the applied force and velocity (which is a time history result) at that point and divide them (matlab) appropriately to get the response.

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