Bearing Fault Feature Extraction Method Based on GA-VMD and Center Frequency

Table 3

Classification recognition rates of single IMF component center frequency.

IMF	Classification and recognition accuracy (%)
	Normal	Inner ring fault	Outer ring fault	Rolling element fault	Mean
IMF1	98	96	68	50	78
IMF2	90	100	100	88	94.5
IMF3	82	100	86	92	90
IMF4	94	90	78	94	89
IMF5	100	98	60	76	83.5
IMF6	100	80	96	82	89.5
IMF7	100	92	62	60	78.5
IMF8	60	98	70	36	66
IMF9	100	56	66	82	76