Research Article
Analytical and Numerical Investigation of Lacing Wire Damage Induced Mistuning in Turbine Blade Packet
Table 3
Effect of mistuning due to lacing wire damage (for
= 0.1) on natural frequencies.
| Mode | Submode | values | = 0 | = 0.2 | = 0.4 | = 0.6 | = 0.8 | = 1.0 |
| 1 | I | 1.8751 | 1.8751 | 1.8751 | 1.8751 | 1.8751 | 1.8751 | II | 1.9189 | 1.9140 | 1.9073 | 1.8987 | 1.8879 | 1.8751 | III | 1.9978 | 1.9872 | 1.9780 | 1.9703 | 1.9642 | 1.9597 |
| 2 | I | 4.6941 | 4.6941 | 4.6941 | 4.6941 | 4.6941 | 4.6941 | II | 4.6970 | 4.6967 | 4.6962 | 4.6956 | 4.6949 | 4.6941 | III | 4.7028 | 4.7020 | 4.7013 | 4.7007 | 4.7002 | 4.6999 |
| 3 | I | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | II | 7.8554 | 7.8553 | 7.8552 | 7.8551 | 7.8549 | 7.8548 | III | 7.8566 | 7.8564 | 7.8563 | 7.8562 | 7.8561 | 7.8560 |
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