need help with acoustic simulation

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hani posted this 4 weeks ago

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?

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peteroznewman posted this 4 weeks ago

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.

 

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hani posted this 4 weeks ago

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.

hani posted this 4 weeks ago

Please see the attachment. Thank you

peteroznewman posted this 4 weeks ago

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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