Performance Improvement of Ensemble Empirical Mode Decomposition for Roller Bearings Damage Detection

Table 3

The Margin calculated using the proposed algorithm (PIEEMD) in direction.

SNR	100 Hz; 1.0 kN	100 Hz; 1.4 kN	100 Hz; 1.8 kN	200 Hz; 1.0 kN	200 Hz; 1.4 kN	200 Hz; 1.8 kN	300 Hz; 1.0 kN	300 Hz; 1.4 kN	300 Hz; 1.8 kN	400 Hz; 1.0 kN	400 Hz; 1.4 kN	400 Hz; 1.8 kN
5	1.1553	1.0479	0.7044	1.2654	0.7560	0.7179	1.2676	1.0039	0.9007	0.8362	1.0402	0.9647
10	1.1627	1.0881	0.8863	1.2660	0.8095	0.6854	1.1806	0.8123	0.8628	0.9342	0.8768	0.9274
15	1.2295	1.1278	0.7577	1.2779	0.8885	0.7732	1.1139	0.7493	0.8810	0.9128	0.8454	0.8652
20	1.2519	1.1192	0.7303	1.2750	0.9342	0.7749	1.0344	0.6806	0.8959	0.8668	0.8547	0.7864
25	1.2066	1.1015	0.6819	1.3166	0.9003	0.7793	1.0172	0.7014	0.9039	0.8631	0.8189	0.7514
30	1.1962	1.0799	0.7069	1.2634	0.8601	0.7705	0.9985	0.7425	0.9084	0.8292	0.7611	0.7108