Table 1 Comparison of sizes and frequency ranges.
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 | 307.0 | 3 | 1316.6 |
2 | 31.5 | 6 | 3521.9 | |
3 | 533.0 | 12 | 10325.9 | |
4 | 862.0 | 14 | 12162.7 | |
Optimal design (case #1) | 1 | 318.0 | 3 | 916.9 |
2 | 496.2 | 12 | 8812.6 | |
3 | 510.2 | 13 | 10400.7 | |
4 | 2010.9 | 15 | 11029.3 | |
