Research Article
Vibration Analysis of Aeroengine Blisk Structure Based on a Prestressed CMS Super-Element Method
Table 7
Natural frequencies of typical orders at different aspect ratios of fixed length.
| Aspect ratio | ā1st | 39th | 77th | 84th | 120th |
| 1.5 | 103.51 | 640.82 | 1094 | 2854 | 2971 | 1.75 | 102.52 | 638.58 | 1208 | 2892 | 2993 | 2 | 101.66 | 636.4 | 1319 | 2895 | 2979 | 2.25 | 101.14 | 634.69 | 1430 | 2878 | 2969 | 2.5 | 100.63 | 632.64 | 1540 | 2804 | 2966 |
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