Issue:
Acoustic Absorber values, as entered in the Simcenter 3D Environment for Ray Acoustics, are interpreted as their complex conjugate values by Simcenter 3D Ray Acoustics Solver.
This led to different results when comparing microphone responses, between Ray Acoustics and Simcenter Nastran or Simcenter 3D Acoustics BEM.
A workaround in affected releases, is to enter the Acoustic Absorber values as complex conjugate values manually (change the sign of the imaginary part) in the Simcenter 3D Environment for Ray Acoustics.
The problem has been fixed for Simcenter 3D 2021.1 v1953
PR Number: 8452038
Affected Software:
Simcenter 3D 2020.1 series and 2020.2 series
SFB-NX-8513708
PR 8452038
Product Information:
- Product: NX , Application: CAE