Research Article
A Fault Diagnosis Method for Rolling Bearings Based on Feature Fusion of Multifractal Detrended Fluctuation Analysis and Alpha Stable Distribution
Table 5
The diagnosis results comparison of five methods.
| Feature type | Diagnostic accuracy (%) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | Average |
| MFDFA features | 100 | 80 | 100 | 90 | 70 | 90 | 70 | 85.7 | ASD features | 80 | 100 | 100 | 80 | 90 | 70 | 100 | 88.6 | MFDFA + KPCA | 100 | 100 | 100 | 90 | 70 | 100 | 90 | 92.9 | ASD + KPCA | 90 | 100 | 100 | 90 | 100 | 80 | 100 | 92.9 | MFDFA + ASD + KPCA | 100 | 100 | 100 | 90 | 100 | 100 | 100 | 98.6 |
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