Research Article
A New Framework Based on Supervised Joint Distribution Adaptation for Bearing Fault Diagnosis across Diverse Working Conditions
Table 1
The CWRU bearing data for experiments.
| Category of bearing defect | Defect diameter (inches) | Number of training/testing samples | Class label | Motor loads 0 hp | Motor loads 1 hp | Motor loads 2 hp | Motor loads 3 hp |
| No defect | 0 | 20/40 | 20/40 | 20/40 | 20/40 | 1 |
| Inner raceway defect (IRD) | 0.007 | 20/40 | 20/40 | 20/40 | 20/40 | 2 | 0.014 | 20/40 | 20/40 | 20/40 | 20/40 | 3 | 0.021 | 20/40 | 20/40 | 20/40 | 20/40 | 4 | 0.028 | 20/40 | 20/40 | 20/40 | 20/40 | 5 |
| Outer raceway defect (BD) | 0.007 | 20/40 | 20/40 | 20/40 | 20/40 | 6 | 0.014 | 20/40 | 20/40 | 20/40 | 20/40 | 7 | 0.021 | 20/40 | 20/40 | 20/40 | 20/40 | 8 |
| Ball defect (ORD) | 0.007 | 20/40 | 20/40 | 20/40 | 20/40 | 9 | 0.014 | 20/40 | 20/40 | 20/40 | 20/40 | 10 | 0.021 | 20/40 | 20/40 | 20/40 | 20/40 | 11 | 0.028 | 20/40 | 20/40 | 20/40 | 20/40 | 12 |
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