A Novel Method for Remaining Useful Life Prediction of Roller Bearings Involving the Discrepancy and Similarity of Degradation Trajectories

Table 5

The failure threshold setting of the testing bearings.

Threshold setting	Testing bearings
	B 1_3	B 1_4	B 1_5	B 1_6	B 1_7	B 2_3	B 2_4	B 2_5	B 2_6	B 2_7	B 3_3
Reference bearing	B 1_1	B 2_2	B 2_1	B 3_1	B 1_1	B 2_1	B 2_1	B 2_1	B 3_1	B 2_1	B 2_1
	0.5457	0.5333	0.2914	0.2659	0.5457	0.2914	0.2914	0.2914	0.2659	0.2914	0.2914
DTW distance	0.5591	0.1774	0.5670	0.7400	0.2406	0.3149	0.32110	0.3491	0.3925	0.1425	0.1638
Failure threshold	1.1048	0.7107	0.81.0059584	1.0059	0.7863	0.6063	0.7579	0.6405	0.6839	0.4339	0.4552