A Denoising Autoencoder-Based Bearing Fault Diagnosis System for Time-Domain Vibration Signals

Table 2

Diagnosis results obtained on different bearing datasets.

Dataset	Metric	ELM	SVM	BPNN1 (500)	BPNN2 (500-500)	BPNN3 (600-200-100)	SAE+BP	Proposed method
A	Acc-mean	11.23	77.07	83.97	85.96	78.01	86.32	92.29
	Acc-std	0.82	0.57	0.37	0.56	0.49	0.39	0.19
B	Acc-mean	11.6	74.47	85.77	88.58	79.87	87.14	93.32
	Acc-std	0.86	0.61	0.47	0.36	0.39	0.30	0.33
C	Acc-mean	11.70	72.69	89.28	89.24	77.57	88.92	93.76
	Acc-std	0.86	0.50	0.37	0.41	0.30	0.28	0.25
D	Acc-mean	11.37	72.45	87.67	89.57	81.13	88.70	94.06
	Acc-std	0.52	0.00	0.43	0.34	0.35	0.43	0.21
E	Acc-mean	13.10	93.34	96.11	97.84	93.55	97.79	99.04
	Acc-std	1.19	0.28	0.13	0.10	0.13	0.12	0.05