Hi all,
I need to calculate the characteristic (or specific) impedance of a tube. Generally this tube has a varing cross-sectional area (diameter changes and it has tube is not cylidrical). However for a very simplified case, let's assume it is a perfect cylender terminated at a finite length. The walls and termination are not rigid so it will have interaction with acoustic pressure inside.
Hi all,
I need to model the acoustic impedance response of an elastic tube ( Acoustic-solid interaction) in the frequency domain. The acoustic impedance is :Pressure/volume velocity.
Here is the idea:
The geometry is a simple closed-end elastic tube. The acoustic load is generated by a piston on one end, sliding inside the tube. To have the frequency response, a unit step function of the displacement is applied to the piston (i.e., DZ=U(t)) and the pressure of the air inside the tube is measured in a time domain (i.e., P(t)) in front of the piston.