Research Article
Analytical and Numerical Investigation of Lacing Wire Damage Induced Mistuning in Turbine Blade Packet
Table 4
Effect of mistuning due to lacing wire damage (for
= 0.25) 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 | 1.9790 | 1.9678 | 1.9526 | 1.9323 | 1.9065 | 1.8751 | III | 2.1448 | 2.1239 | 2.1052 | 2.0895 | 2.0771 | 2.0675 |
| 2 | I | 4.6941 | 4.6941 | 4.6941 | 4.6941 | 4.6941 | 4.6941 | II | 4.7014 | 4.7005 | 4.6994 | 4.6979 | 4.6962 | 4.6941 | III | 4.7160 | 4.7139 | 4.7121 | 4.7107 | 4.7095 | 4.7087 |
| 3 | I | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | II | 7.8563 | 7.8561 | 7.8559 | 7.8556 | 7.8552 | 7.8548 | III | 7.8594 | 7.8590 | 7.8586 | 7.8583 | 7.8580 | 7.8579 |
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