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Results of the numerical modal analysis of the disc before and after blade modification.
| Mode No | Natural Frequency, Hz | Difference, % |
|
|---|---|---|---|
| Disc before Blade Modification |
Disc after Blade Modification |
||
| Mod I (0;2) | 706 | 770 | 8.3 |
| Mod II (0;3) | 1676 | 1851 | 9.5 |
| Mod III (0;4) | 2751 | 3066 | 10.3 |
