Prediction on the Remaining Useful Life of Rolling Bearings Using Ensemble DLSTM

Table 8

Bagging-DLSTMpredicted metric results.

Bearing no.	CRA		Score
	Bagging-DLSTM	Proposed approach	Bagging-DLSTM	Proposed approach
Bearing 1-1	0.33	0.90	43.5	45.8
Bearing 1-3	0.57	0.81	92.8	96.1
Bearing 1-5	0.86	0.89	17.6	17.8
Bearing 2-2	0.60	0.94	103.1	104.6
Bearing 2-3	0.38	0.82	348.9	361.3
Bearing 2-4	0.28	0.43	26.8	27.1
Bearing 3-1	0.43	0.80	177.4	184.0
Bearing 3-2	0.28	0.67	2113.8	2265.6
Bearing 3-3	0.55	0.83	27.1	27.8
Bearing 3-4	0.47	0.91	92.77	95.5
Bearing 3-5	0.14	0.87	96.6	105.2
Mean	0.45	0.81	285.49	302.80

Both the CRA value and score values are greater than the bagging-DLSTM of the proposed method, as shown in Table 8. The mean CRA value for bagging-DLSTM is 0.45, whereas it is 0.81 for the proposed method, demonstrating the superiority of the latter.