A Bearing Fault Diagnosis Using a Support Vector Machine Optimised by the Self-Regulating Particle Swarm

Table 7

Permutation entropy at 1772 .

Fault location	Fault mark	Feature number	Permutation entropy at 1772
			PE1	PE2	PE3	PE4	PE5	PE6
Inner ring	1	1	0.7494	0.5420	0.3565	0.2719	0.2092	0.1665
	1	2	0.7520	0.5614	0.3637	0.2730	0.2116	0.1713
	1	3	0.7358	0.6310	0.4070	0.3040	0.2162	0.1721
	1	4	0.7491	0.5292	0.3607	0.2702	0.1970	0.1586
	1	5	0.7446	0.5489	0.3622	0.2706	0.1932	0.1484
Outer ring	2	1	0.8194	0.5606	0.3798	0.2768	0.2112	0.1703
	2	2	0.8142	0.5732	0.3699	0.2895	0.2287	0.1879
	2	3	0.8070	0.5617	0.3677	0.2900	0.2190	0.1872
	2	4	0.8110	0.6117	0.3783	0.2881	0.2200	0.1715
	2	5	0.8144	0.5566	0.3699	0.2923	0.2293	0.1748
Ball	3	1	0.7992	0.5848	0.3893	0.2789	0.2013	0.1545
	3	2	0.8085	0.5766	0.3903	0.2843	0.2063	0.1627
	3	3	0.7860	0.6197	0.4063	0.2842	0.2023	0.1617
	3	4	0.7733	0.5771	0.3853	0.2831	0.2027	0.1580
	3	5	0.7840	0.5785	0.3933	0.2865	0.2106	0.1746