Vibration Images-Driven Fault Diagnosis Based on CNN and Transfer Learning of Rolling Bearing under Strong Noise

Table 11

Summary of test results.

SNR (db)	Parameters	EP	IMFA	SPCI	GTM	Average
22	Freezing type	H	I	I	H	—
	Test accuracy	99.58%	97.75%	96.67%	91.67	96.42%
	Time cost (s)	161.52	179.44	194.86	165.77	175.40
16	Freezing type	B	B	G	F	—
	Test accuracy	97.92%	90.42%	83.33%	76.67%	87.09%
	Time cost (s)	170.68	171.54	194.14	181.55	179.48
	Relative reduction rate	1.67%	7.50%	13.80%	16.36%	9.68%
10	Freezing type	F	F	B	G	—
	Test accuracy	96.67%	78.33%	86.67%	59.58%	80.31 %
	Time cost (s)	170.46	165.36	194.19	175.27	176.32
	Relative reduction rate	1.28%	13.37%	-4.01%	22.29%	7.78%