Research Article
A Hybrid Domain Degradation Feature Extraction Method for Motor Bearing Based on Distance Evaluation Technique
Table 1
Hybrid domain features.
| Peak value | | Root mean square amplitude | | Absolute mean value | | Root mean square value | | Peak index | | Waveform index | | Clearance factor | | Center of gravity frequency | | Mean square frequency | | Root mean square frequency | | Frequency variance | | Permutation entropy | |
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