Design and Analyzing Vibration with Acoustic …
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Fig. 2 a Imported from the ANSYS b Tetra meshing body
Table 1 Quality of meshing for the muffler
Mesh metric
Element quality
Aspect ratio
Skewness
Orthogonal quality
Min
0.20678
1.1402
4.1268e−5
0.1626
Max
0.9998
8.6137
0.8374
0.99975
Avg
0.83525
1.8544
0.22324
0.77774
Standard deviation
9.764e−2
0.46881
0.11885
0.11956
Fig. 3 Acoustic power level (dB) a Original model b Modified model
carbon fiber material and minimum for the rockwool. By comparing Figs. 4, 5, 6,
and 7, the minimum energy levels are obtained for the material rockwool because it
is having the capacity to observe the more energy.
Acoustic power level is compared with two different models and materials in
Fig. 8. In this, the modified model having holes is observing more sound compared
to original and also while compared with materials, the rockwool is the material
having excellent acoustics and sound absorption properties, so it is getting less dB
level compared to carbon fiber because of its properties.
259
Fig. 2 a Imported from the ANSYS b Tetra meshing body
Table 1 Quality of meshing for the muffler
Mesh metric
Element quality
Aspect ratio
Skewness
Orthogonal quality
Min
0.20678
1.1402
4.1268e−5
0.1626
Max
0.9998
8.6137
0.8374
0.99975
Avg
0.83525
1.8544
0.22324
0.77774
Standard deviation
9.764e−2
0.46881
0.11885
0.11956
Fig. 3 Acoustic power level (dB) a Original model b Modified model
carbon fiber material and minimum for the rockwool. By comparing Figs. 4, 5, 6,
and 7, the minimum energy levels are obtained for the material rockwool because it
is having the capacity to observe the more energy.
Acoustic power level is compared with two different models and materials in
Fig. 8. In this, the modified model having holes is observing more sound compared
to original and also while compared with materials, the rockwool is the material
having excellent acoustics and sound absorption properties, so it is getting less dB
level compared to carbon fiber because of its properties.