Analysis of natural frequency convergence of conical–cylindrical acoustic cavity coupled system
| Mc × Nc × Qc | Mode number | |||||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| 3 × 3 × 3 | 73.606 | 91.299 | 127.067 | 136.443 | 172.670 | 176.672 | 205.789 | 205.903 |
| 4 × 4 × 4 | 73.572 | 91.297 | 127.058 | 136.410 | 172.626 | 176.668 | 205.790 | 205.892 |
| 5 × 5 × 5 | 73.572 | 91.297 | 127.058 | 136.410 | 172.626 | 176.668 | 205.790 | 205.892 |
| 6 × 6 × 6 | 73.572 | 91.297 | 127.058 | 136.410 | 172.626 | 176.668 | 205.790 | 205.892 |
| FEM | 73.575 | 91.297 | 127.060 | 136.410 | 172.630 | 176.670 | 205.790 | 205.890 |
| Mode number | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| 3 × 3 × 3 | 73.606 | 91.299 | 127.067 | 136.443 | 172.670 | 176.672 | 205.789 | 205.903 |
| 4 × 4 × 4 | 73.572 | 91.297 | 127.058 | 136.410 | 172.626 | 176.668 | 205.790 | 205.892 |
| 5 × 5 × 5 | 73.572 | 91.297 | 127.058 | 136.410 | 172.626 | 176.668 | 205.790 | 205.892 |
| 6 × 6 × 6 | 73.572 | 91.297 | 127.058 | 136.410 | 172.626 | 176.668 | 205.790 | 205.892 |
| FEM | 73.575 | 91.297 | 127.060 | 136.410 | 172.630 | 176.670 | 205.790 | 205.890 |
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