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

Table 5

Performance evaluation for the six prognostics approaches using CRA.

Operating condition	Bearing dataset	CRA
		RVM	DBN	PF	EKF	Hybrid prognostics [23]	Proposed approach
Condition 1	Bearing 1	0.57	0.43	0.61	0.92	0.90	0.90
	Bearing 2	0.18	0.62	0.73	0.35	0.86	0.90
	Bearing 3	0.63	0.56	0.49	0.80	0.85	0.81
	Bearing 4	0.37	0.95	0.23	0.68	0.72	0.96
	Bearing 5	0.61	0.66	0.43	0.50	0.79	0.89
Condition 2	Bearing 1	0.57	0.55	0.40	0.51	0.86	0.93
	Bearing 2	0.18	0.20	0.26	0.43	0.65	0.94
	Bearing 3	0.62	0.90	0.74	0.88	0.96	0.82
	Bearing 4	0.07	0.53	0.46	0.50	0.63	0.43
	Bearing 5	0.26	0.07	0.18	0.48	0.63	0.83
Condition 3	Bearing 1	0.43	0.70	0.66	0.77	0.89	0.80
	Bearing 2	0.22	0.13	0.15	0.54	0.65	0.67
	Bearing 3	0.09	0.52	0.13	0.97	0.89	0.83
	Bearing 4	0.66	0.61	0.78	0.67	0.81	0.91
	Bearing 5	0.49	0.56	0.39	0.50	0.65	0.87