Research Article
Analytical and Numerical Investigation of Lacing Wire Damage Induced Mistuning in Turbine Blade Packet
Table 1
Natural frequencies (
) of the tuned blade packet with varying stiffness ratios.
| Mode | Submode | = 0.1 | = 0.25 | = 0.5 | = 1.0 |
| 1 | I | 1.8751 | 1.8751 | 1.8751 | 1.8751 | II | 1.9189 | 1.9790 | 2.0675 | 2.2135 | III | 1.9978 | 2.1448 | 2.3318 | 2.5932 |
| 2 | I | 4.6941 | 4.6941 | 4.6941 | 4.6941 | II | 4.6970 | 4.7014 | 4.7087 | 4.7234 | III | 4.7028 | 4.7160 | 4.7383 | 4.7836 |
| 3 | I | 7.8548 | 7.8548 | 7.8548 | 7.8548 | II | 7.8554 | 7.8563 | 7.8579 | 7.8610 | III | 7.8566 | 7.8594 | 7.8641 | 7.8735 |
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