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

Table 5

Permutation entropy at 1730 .

Fault location	Fault mark	Feature number	Permutation entropy at 1730
			PE1	PE2	PE3	PE4	PE5	PE6
Inner ring	1	1	0.7421	0.5522	0.3756	0.2768	0.2020	0.1605
	1	2	0.7502	0.5321	0.3656	0.2704	0.1943	0.1585
	1	3	0.7609	0.5692	0.3836	0.2811	0.2035	0.1592
	1	4	0.7531	0.5219	0.3538	0.2713	0.1896	0.1513
	1	5	0.7399	0.5158	0.3623	0.2923	0.2125	0.1662
Outer ring	2	1	0.8071	0.6348	0.4092	0.3008	0.2386	0.1830
	2	2	0.8112	0.6038	0.4010	0.3160	0.2720	0.2020
	2	3	0.8092	0.6609	0.4291	0.3104	0.2516	0.1925
	2	4	0.8039	0.6134	0.3875	0.3069	0.2239	0.1796
	2	5	0.8060	0.5603	0.3848	0.2961	0.2292	0.1864
Ball	3	1	0.8002	0.5068	0.3674	0.2595	0.1890	0.1512
	3	2	0.8222	0.5497	0.3853	0.2719	0.1948	0.1614
	3	3	0.8141	0.5333	0.3847	0.2752	0.1882	0.1447
	3	4	0.8083	0.5193	0.3939	0.2779	0.1920	0.1493
	3	5	0.8133	0.5223	0.3826	0.2764	0.1964	0.1580