Rolling Bearing Fault Diagnostic Method Based on VMD-AR Model and Random Forest Classifier

Table 1

Classification results for fault location problem using VMD-AR model and RF classifier.

Number of modes	Number of training samples	Number of testing samples	Classification accuracy (%)				Total accuracy (%)
			Normal	IR fault	B fault	OR fault
4	80	320	100	100	100	100	100
	160	240	100	100	100	100	100
	240	160	100	100	100	100	100
	320	80	100	100	100	100	100
5	80	320	100	100	100	98.25	99.56
	160	240	100	100	100	98.83	99.71
	240	160	100	100	100	100	100
	320	80	100	100	100	100	100
6	80	320	100	100	100	100	100
	160	240	100	100	100	100	100
	240	160	100	100	100	100	100
	320	80	100	100	100	100	100
7	80	320	100	100	100	99.5	99.88
	160	240	100	100	100	99.83	99.96
	240	160	100	100	100	100	100
	320	80	100	100	100	100	100