422
R. Zajac et al.
Fig. 4 Sound pressure level
evaluate the acoustic behavior of structure after correlation with technical experiment. Without validation of process, the numerical simulation can show the benefit
of change, but without correct values.
Compared to [4], some modifications were applied in acoustic computational
model to increase the accuracy. Greater emphasis was placed on the creation of the FE
“mesh” based on the size of the element relative to the investigated frequency range.
Another change was the boundary condition “Equivalent Far-field Surface”, which
more effectively and more accurately determines the SPL’s outside the “acoustic
mesh”. This methodology will be used for other structures, which is more complex
[6].
R. Zajac et al.
Fig. 4 Sound pressure level
evaluate the acoustic behavior of structure after correlation with technical experiment. Without validation of process, the numerical simulation can show the benefit
of change, but without correct values.
Compared to [4], some modifications were applied in acoustic computational
model to increase the accuracy. Greater emphasis was placed on the creation of the FE
“mesh” based on the size of the element relative to the investigated frequency range.
Another change was the boundary condition “Equivalent Far-field Surface”, which
more effectively and more accurately determines the SPL’s outside the “acoustic
mesh”. This methodology will be used for other structures, which is more complex
[6].