Bearing Health Monitoring Based on the Orthogonal Empirical Mode Decomposition

Table 3

Detection of the defect in the outer raceway (BPFO), based on the data processing of channels 1 and 2; list of detected harmonics.

BPFO and its harmonics: channel 1		BPFO and its harmonics: channel 2
1st OIMF	26 × BPFO	1st OIMF	14 × BPFO
	24 × BPFO		12 × BPFO
	21 × BPFO
	14 × BPFO
2nd OIMF	14 × BPFO	2nd OIMF	14 × BPFO
	10 × BPFO		12 × BPFO
3rd OIMF	10 × BPFO	3rd OIMF	14 × BPFO
	8 × BPFO		12 × BPFO
	5 × BPFO		8 × BPFO
			6 × BPFO
			5 × BPFO
4th OIMF	5 × BPFO	4th OIMF	6 × BPFO
	3 × BPFO		5 × BPFO
			3 × BPFO
5th OIMF	3 × BPFO	5th OIMF	3 × BPFO
	2 × BPFO		2 × BPFO
			BPFO
6th OIMF	BPFO	6th OIMF	BPFO
7th OIMF	BPFO	7th OIMF	BPFO