In SOL108/111, the function is used for modeling acoustic absorption on walls.
In SOL107, Does the acoustic absorber will act as absorber in the same way as SOL108/111?
Solution
If you are defining absorber in following way then the behaviour should be same.
The Acoustic Absorber corresponds to the Nastran CAABSF and PAABSF bulk data entries.
Supported NX Nastran solutions
The following solution types are supported with both acoustic and vibro-acoustic solutions:
•SOL 103 – Real Eigenvalues
•SOL 107 – Direct Complex Eigenvalues
•SOL 108 – Direct Frequency Response
•SOL 110 – Modal Complex Eigenvalues
•SOL 111 – Modal Frequency Response
In order to specify an absorbing boundary condition (which AML also is) for SOL107, it is best to use a PAABSF with the impedance set to the characteristic impedance of the outside fluid (rho.c).
Notes