Distance and Density Similarity Based Enhanced -NN Classifier for Improving Fault Diagnosis Performance of Bearings

Table 1

Datasets for the proposed bearing fault diagnosis methodology.

Dataset	Shaft speed	Crack size	Fault types
			(Number of AE signals)
Dataset 1	300 rpm	3 mm	BFI	BFO	BFR	BFIO	BFIR	BFOR	BFIOR	FFB
			(90)	(90)	(90)	(90)	(90)	(90)	(90)	(90)
Dataset 2	350 rpm	3 mm	BFI	BFO	BFR	BFIO	BFIR	BFOR	BFIOR	FFB
			(90)	(90)	(90)	(90)	(90)	(90)	(90)	(90)
Dataset 3	300 rpm	12 mm	BFI	BFO	BFR	BFIO	BFIR	BFOR	BFIOR	FFB
			(90)	(90)	(90)	(90)	(90)	(90)	(90)	(90)
Dataset 4	350 rpm	12 mm	BFI	BFO	BFR	BFIO	BFIR	BFOR	BFIOR	FFB
			(90)	(90)	(90)	(90)	(90)	(90)	(90)	(90)