It is intuitively obvious that porous materials possess both a resistive component and a reactive component. Higher density materials often reflect high frequency content, but absorb more low frequency content. Lower density materials possess a lower amplitude high frequency reflection, but absorb less energy.
If we knew the specific damping capacity of the porous material, could we calculate the resistance/reactance wrt frequency?
Thanks,
Thadman
If we knew the specific damping capacity of the porous material, could we calculate the resistance/reactance wrt frequency?
Thanks,
Thadman
It is intuitively obvious that porous materials possess both a resistive component and a reactive component. Higher density materials often reflect high frequency content, but absorb more low frequency content. Lower density materials possess a lower amplitude high frequency reflection, but absorb less energy.
If we knew the specific damping capacity of the porous material, could we calculate the resistance/reactance wrt frequency?
Thanks,
Thadman
Hi Thadman,
A good start is to investigate complex acoustic absorbtion/transmission and reflexion measurement using a Kundts tube and deduce the equations at:
http://lva.insa-lyon.fr/download/bancs_kundt_en.pdf
b
Hi Thadman,
A good start is to investigate complex acoustic absorbtion/transmission and reflexion measurement using a Kundts tube and deduce the equations at:
http://lva.insa-lyon.fr/download/bancs_kundt_en.pdf
b
Thanks
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