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

Table 12

The failure threshold setting of the testing bearings for prediction moment at 75%.

Threshold setting	Testing bearings
	B 1_3	B 1_4	B 1_5	B 2_3	B 2_4	B 2_5	B 3_3	B 3_4	B 3_5
Reference bearing	B 1_2	B 1_2	B 2_1	B 1_2	B 1_1	B 2_1	B 2_1	B 2_1	B 3_1
	0.5230	0.6050	0.5892	0.6460	0.6586	0.3708	0.5230	0.6050	0.5892
DTW distance	0.0265	0.1847	1.0251	0.0587	0.0317	0.2730	2.0520	2.3015	3.0559
Failure threshold	0.5495	0.7897	1.6143	0.7047	0.6933	0.6438	2.575	2.9065	3.6451