How can I model a certain graph into my frequency dependent material properties

- February 18, 2021 at 3:49 am
  
  far29
  Subscriber
  
  Hello, I am trying to model snoring related vibrations using the frequency dependent material for my arterial wall. I have a graph of pressure ratio versus frequency that represents the vibrations that I want to model on ansys. Any way I can do that using the material properties or do I need to use a different approach n
- February 19, 2021 at 8:45 am
  
  1shan
  Ansys Employee
  
  ,nThere are several methods to curve fit response data of a vibration test ( pressure vs frequency in your case) and find out the damping ratios at each natural frequency for example https://www.mathworks.com/matlabcentral/answers/373890-rational-fraction-polynomial-for-modal-parameters-extraction. You could use these damping ratios and insert them as material properties (the way I told you in our previous discussion https://forum.ansys.com/discussion/comment/106529#Comment_106529) and perform a harmonic analysis.nRegards,nIshan.n
- March 7, 2021 at 5:08 am
  
  far29
  Subscriber
  
  nThank you for your answer. nany way I can do that for Prony series in transient analysis. If so can you explain the way to do so nThanksn

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