Table 3 Comparison of band gap sizes and frequency ranges in hexagonal honeycomb lattice.
From: Optimal design of lattice structures for controllable extremal band gaps
Band gap # | Band gap size (Hz) | Lower bound of band gap | ||
|---|---|---|---|---|
Mode # | Frequency (Hz) | |||
Original design | 1 | 151.6 | 6 | 3162.1 |
2 | 719.2 | 14 | 10281.7 | |
Original undulated design | 1 | 29.6 | 3 | 1165.9 |
2 | 501.7 | 6 | 2582.4 | |
3 | 1513.7 | 9 | 4489.5 | |
4 | 1597.8 | 13 | 8114.7 | |
Optimal design (case #4) | 1 | 125.8 | 3 | 20.4 |
2 | 227.4 | 7 | 258.2 | |
3 | 38.2 | 9 | 550.9 | |
4 | 272.2 | 12 | 683.9 | |
5 | 177.5 | 15 | 1050.1 | |
Optimal design (case #5) | 1 | 1695.9 | 9 | 182.4 |
2 | 136.1 | 15 | 1981.0 | |
