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November 27, 2023 at 3:26 am
SANG JUN LEE
SubscriberHi, I'm designing helmholtz resonator as silencer and i want to ananlyze my model how much this model can reduce noise. i use Harmonic-acoustics, but transmission loss and absorption coefficent have shown opposite results. as you can see, at the frequency(Hz) where transmission loss is low, the absorption coeffiecient is high. i want to know which of transmission loss and absorption coefficient shows the amount of noise reduction properly.
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November 27, 2023 at 6:15 am
Erik Kostson
Ansys EmployeeHi
transmission loss is common FE result for silencers.
See here for some general theory and definitions on acoustic results:
https://www.youtube.com/watch?app=desktop&v=K8wdvxFnHXE
Acoustic Power Loss Results (ansys.com)
If you are not able to open the links, refer to this forum discussion:Â How to access the ANSYS Online Help
Guidelines for Posting on Ansys Learning Forum
Hope that helps
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- The topic ‘How can i know amount of noise reduction?’ is closed to new replies.
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