Research Article
Magnetic-Acoustic Feature Extraction and Damage Fusion Evaluation of 45 Steel Specimens during Fatigue Process for Remanufacturing
Table 2
Mean value and variance of the magnetic-acoustic feature parameters (1000 cycles).
| | Feature parameters | Mean value | Variance |
| | Cumulative ringing count | 1094775 | 11659 | | Energy (proportion of frequency band 1) | 43.5 | 0.389 | | Amplitude (singularity index) | 0.1 | 0.0172 | | MSE(Hp(y))avg | 0.02 | 6.67 × 10−5 | | MSE(K)avg | 0.99014 | 9.86 × 10−6 |
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