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

Table 6

Permutation entropy at 1750 .

Fault location	Fault mark	Feature number	Permutation entropy at 1750
			PE1	PE2	PE3	PE4	PE5	PE6
Inner ring	1	1	0.7495	0.5696	0.3642	0.2677	0.1942	0.1593
	1	2	0.7450	0.5521	0.3716	0.2879	0.2047	0.1601
	1	3	0.7441	0.5945	0.3809	0.2838	0.2090	0.1696
	1	4	0.7461	0.5290	0.3646	0.2674	0.1993	0.1624
	1	5	0.7484	0.6640	0.4109	0.2953	0.2185	0.1752
Outer ring	2	1	0.8049	0.6063	0.3937	0.2891	0.2121	0.1677
	2	2	0.8204	0.5579	0.3696	0.2788	0.2213	0.1862
	2	3	0.7964	0.6387	0.4171	0.3101	0.2303	0.1814
	2	4	0.8118	0.6892	0.4554	0.3111	0.2659	0.1988
	2	5	0.8131	0.5760	0.3771	0.2931	0.2178	0.1765
Ball	3	1	0.8398	0.5654	0.3797	0.2731	0.1975	0.1539
	3	2	0.8119	0.5361	0.3678	0.2711	0.1963	0.1565
	3	3	0.8337	0.5878	0.4060	0.2976	0.2080	0.1708
	3	4	0.8205	0.5261	0.3880	0.2959	0.2024	0.1636
	3	5	0.8170	0.5541	0.3793	0.2718	0.2028	0.1592