Abstract
Comsol Multiphysics, Va One, Abaqus and Actran were
compared to be used as the software for cabin acoustics
simulations in NOVI SP2. Actran was selected to be used
as a FEM program in frequency domain, using Biot's model
for absorptive materials. CAD data was simplified and
repaired, and the mesh was done in Ansys.
The modes and the eigenfrequencies of empty cabin,
calculated with Abaqus and Actran, are very consistent.
The calculated sound field distributions with internal
loudspeaker excitation are rather similar to the measured
ones.
A general modeling flowchart for vibroacoustic
simulations has been developed in the project.
| Original language | English |
|---|---|
| Place of Publication | Espoo |
| Publisher | VTT Technical Research Centre of Finland |
| Number of pages | 29 |
| Publication status | Published - 2014 |
| MoE publication type | D4 Published development or research report or study |
Keywords
- modelling tools
- modelling flowchart