Table 6
Comparison of fatigue damage prediction performance of hydraulic support under different methods.
| Performance metric | Current method | Single mechanical load analysis | Temperature variation analysis | Corrosion-only analysis | Two-field coupling method |
| Crack Propagation Path Error | <7% | 15.20% | 13.60% | 16.50% | 14.30% |
| Remaining Life Prediction Error | 1.10% | 8.00% | 7.30% | 9.20% | 7.50% |
| Safety Factor Fluctuation Range | ±0.04 | ±0.12 | ±0.10 | ±0.14 | ±0.11 |
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