Research Article
Gas Turbine Blade Damper Optimization Methodology
Table 3
Measured modal parameters for 1st flexural mode at room temperature.
| Blade fixity | Frequency (Hz) | Log decrement % |
| Spring clamping of root | 1.01f1 | 0.47% | Three blades fixed in a fixture | 1.03f1 | 0.58% |
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