Research Article
Analytical and Numerical Investigation of Lacing Wire Damage Induced Mistuning in Turbine Blade Packet
Table 13
Effect of lacing wire damage induced mistuning (for λ = 0.1) on natural frequencies (lacing wire at mid span).
| 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 | 1.8803 | 1.8797 | 1.8789 | 1.8779 | 1.8766 | 1.8751 | III | 1.8906 | 1.8891 | 1.8879 | 1.8869 | 1.8861 | 1.8855 |
| 2 | I | 4.6941 | 4.6941 | 4.6941 | 4.6941 | 4.6941 | 4.6941 | II | 4.6956 | 4.6954 | 4.6952 | 4.6949 | 4.6945 | 4.6941 | III | 4.6985 | 4.6981 | 4.6977 | 4.6975 | 4.6972 | 4.6970 |
| 3 | I | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | II | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | III | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 | 7.8548 |
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