Research Article
Bearing Health Monitoring Based on the Orthogonal Empirical Mode Decomposition
Table 4
Detection of the defect in the inner raceway (BPFI), based on the data processing of channels 1 and 2; list of detected harmonics.
| BPFI and its harmonics: channel 1 | BPFI and its harmonics: channel 2 |
| 1st OIMF | 21 × BPFI | 1st OIMF | 20 × BPFI | | 18 × BPFI | | 19 × BPFI | | 13 × BPFI | | | 10 × BPFI | |
| 2nd OIMF | 15 × BPFI | 2nd OIMF | 11 × BPFI | | 14 × BPFI | | 10 × BPFI | | 13 × BPFI | | 9 × BPFI | | 12 × BPFI | | | | 10 × BPFI | | |
| 4th OIMF | 5 × BPFI | 3rd OIMF | 9 × BPFI | | 4 × BPFI | | 7 × BPFI | | 8 × BPFI | | | | 6 × BPFI | | | | 5 × BPFI |
| 7th OIMF | BPFI | 4th OIMF | 9 × BPFI |
| | | 7th OIMF | BPFI |
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