Research Article
Analytical and Numerical Investigation of Lacing Wire Damage Induced Mistuning in Turbine Blade Packet
Table 16
Effect of lacing wire damage induced mistuning (for λ = 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 | 1.9249 | 1.9193 | 1.9118 | 1.9020 | 1.8898 | 1.8751 | III | 2.0109 | 1.9996 | 1.9896 | 1.9813 | 1.9748 | 1.9698 |
| 2 | I | 4.6941 | 4.6941 | 4.6941 | 4.6941 | 4.6941 | 4.6941 | II | 4.7019 | 4.7071 | 4.7048 | 4.7019 | 4.6983 | 4.6941 | III | 4.7275 | 4.7340 | 4.7304 | 4.7275 | 4.7252 | 4.7235 |
| 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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