WAVES AND VIBRATIONS IN INHOMOGENEOUS STRUCTURES ...

objective
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
normalized frequency
Figure 5 - Optimized topology for ω ∗ = 0.15 − 0.20 and V = 0.15, blue: air, red: solid.
Pressure field for ω ∗ = 0.175 and response curve Φ(ω ∗ ). Parameters: L = 7, l = 5, H = 1,
h = 1, ǫ = 0.5.
objective
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
normalized frequency
Figure 6 - Optimized topology for ω ∗ = 0.15 − 0.20 and V = 0.15, blue: air, red: solid.
Pressure field for ω ∗ = 0.175 and response curve Φ(ω ∗ ). Parameters: L = 12, l = 10, H = 1,
h = 1, ǫ = 0.5.
7