need help with acoustic simulation

- January 23, 2018 at 7:42 pm
  
  hani
  Subscriber
  
  I'm having trouble with acoustic body properties as shown in the pic( with yellow highlight). below. I'm using Ansys V16.2 with acoustic extension 16.2.
  
  Could anyone please help me to fix this problem?
- January 23, 2018 at 10:44 pm
  
  peteroznewman
  Subscriber
  
  Can you use the Attach button to upload the screen snapshot file? Then it will be legible downloaded.
  
  Please describe what your model is trying to accomplish.
- January 24, 2018 at 9:10 pm
  
  hani
  Subscriber
  
  I'm using Harmonic analysis to find the Sound Pressure Level (SPL) at different locations of my geometry. When I choose the acoustic body, there are some properties need to be defined such as Freq. Dep. JCA.
- January 24, 2018 at 9:25 pm
  
  hani
  Subscriber
  
  Please see the attachment. Thank you
- January 26, 2018 at 4:04 am
  
  peteroznewman
  Subscriber
  
  I reviewed the Harmonic analysis model that was one of the tutorials in the download of the Acoustics ACT for 18.2.
  It's a model of a muffler that has a perforated metal part to muffle the sound, and a solid metal case and pipe.
  
  When you don't have perforated parts, you just say no.
  
  When you do have perforated parts, you can select JCA...
  
  ...or any other type of model for the perforated material.
  
  I hope there is some way in 16.2 to set perforated material to no. Do you have any perforated material in your model?

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