Research Article
General Log-Linear Weibull Model Combining Vibration and Temperature Characteristics for Remaining Useful Life Prediction of Rolling Element Bearings
Table 6
Comparisons among real and predicted RUL values.
| | Monitoring period and range (hour) | Predicted RUL (hour) | Actual RUL (hour) | RMSE | MAPE (%) |
| | Period 1 (1∼168) | 2192 | 1032 | 1160 | 112.4 | | Period 2 (167∼336) | 1036 | 864 | 172 | 19.9 | | Period 3 (337∼504) | 710 | 696 | 14 | 2.01 | | Period 4 (505∼672) | 507 | 528 | 21 | 3.98 | | Period 5 (673∼840) | 396 | 360 | 36 | 10 | | Period 6 (841∼1008) | 188 | 192 | 4 | 2.08 | | Period 7 (1009∼1176) | 25 | 24 | 1 | 4.17 |
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