Table 2.
Overview of key mode shapes across the span, showing deformation patterns by circumferential (n) and axial (k) lobes, within low frequency range (<300 Hz).
| Mode Order | Natural Freq. (Hz) | Mode type (n, k) | Mode shape |
|---|---|---|---|
| 1 | 29.9355 | (2, 1) | ![]() |
| 2 | 31.5997 | (1, 1) | |
| 3 | 40.8313 | (2, 2) | |
| 4 | 51.4747 | (3, 1) | |
| 5 | 53.4899 | (3, 2) | |
| 30 | 58.9733 | (1, 3) | |
| 32 | 61.7522 | (0, 2) | |
| 102 | 234.731 | (1, 5) |
