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

Table 8

Permutation entropy at 1792 .

Fault location	Fault mark	Feature number	Permutation entropy at 1792
			PE1	PE2	PE3	PE4	PE5	PE6
Inner ring	1	1	0.7363	0.5393	0.3587	0.2674	0.2076	0.1596
	1	2	0.7416	0.5550	0.3508	0.2664	0.1955	0.1513
	1	3	0.7297	0.5633	0.3662	0.2905	0.2084	0.1606
	1	4	0.7299	0.5537	0.3622	0.2656	0.2065	0.1620
	1	5	0.7298	0.5472	0.3685	0.2662	0.1969	0.1530
Outer ring	2	1	0.8217	0.6730	0.4356	0.3176	0.2488	0.1840
	2	2	0.8146	0.6193	0.4082	0.2942	0.2299	0.1747
	2	3	0.8148	0.5702	0.3795	0.2859	0.2282	0.1812
	2	4	0.8258	0.5848	0.3800	0.2927	0.2262	0.1858
	2	5	0.8124	0.6669	0.4430	0.3417	0.2810	0.2267
Ball	3	1	0.8019	0.5699	0.3901	0.2783	0.1957	0.1637
	3	2	0.8041	0.5877	0.3886	0.2841	0.2191	0.1781
	3	3	0.8053	0.5842	0.4002	0.3021	0.2279	0.1732
	3	4	0.8083	0.5844	0.3758	0.2739	0.1967	0.1690
	3	5	0.8183	0.5894	0.3998	0.2959	0.2115	0.1670