Research Article
Data-Driven Fault Diagnosis for Rolling Bearing Based on DIT-FFT and XGBoost
Table 2
Training set and test set.
| Damage diameter (inches) | Fault type | Training set | Test set | Label | Group | Length | Group | Length |
| 0.007 | RE fault | 50 | 102400 | 9 | 18432 | 0 | IR fault | 50 | 102400 | 9 | 18432 | 1 | OR fault | 50 | 102400 | 9 | 18432 | 2 |
| 0.014 | RE fault | 50 | 102400 | 9 | 18432 | 3 | IR fault | 50 | 102400 | 9 | 18432 | 4 | OR fault | 50 | 102400 | 9 | 18432 | 5 |
| 0.021 | RE fault | 50 | 102400 | 9 | 18432 | 6 | IR fault | 50 | 102400 | 9 | 18432 | 7 | OR fault | 50 | 102400 | 9 | 18432 | 8 |
| 0 | Normal state | 50 | 102400 | 186 | 380928 | 9 |
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