Magnetic-Acoustic Feature Extraction and Damage Fusion Evaluation of 45 Steel Specimens during Fatigue Process for Remanufacturing

Table 3

Six groups of test data for each damage state.

Number of fatigue cycles	Cumulative ringing count	Energy (proportion of frequency band 1)	Amplitude (singularity index)	MSE(Hp(y))avg	MSE(K)avg
1000	1094893	44.5	0.2	0.01764	0.99675
2000	820452	38.95	0.25	0.0196	0.90543
3000	796568	36.5	0.3	0.02323	0.84234
4000	722547	35.9	0.35	0.02643	0.77129
5000	706241	31.3	0.5	0.03	0.67578
Fracture	457579	26.34	0.6	0.04532	0.1478