Data-Driven Approaches for Diagnosis of Incipient Faults in Cutting Arms of the Roadheader

Table 2

Sample data.

No.	Variance	Effective values	Kurtosis index	Current A	Current B	Current C
1	0.0017	0.0069	3.6634	104.30	105.00	96.80
2	0.0020	0.0092	2.5883	105.00	116.30	119.30
3	0.0018	0.0073	2.6638	113.30	117.80	111.80
4	0.0023	0.0122	2.7874	115.50	114.80	105.80
5	0.0018	0.0075	3.0039	120.80	114.80	109.50
6	0.0162	0.0657	23.9742	192.53	200.18	189.98
7	0.0180	0.0828	23.2947	178.50	197.63	202.73
8	0.0153	0.0621	32.9706	177.23	178.50	164.48
9	0.0162	0.0675	27.0351	205.28	195.08	186.15
10	0.0207	0.1098	25.0866	196.35	195.08	179.78
11	0.0007	0.0013	1.9910	24.75	24.00	23.25
12	0.0007	0.0013	2.0277	25.50	25.50	26.25
13	0.0009	0.0022	2.8295	28.50	29.25	27.00
14	0.0014	0.0043	2.8934	22.50	24.00	27.00
15	0.0008	0.0016	2.4496	24.75	25.50	25.50
16	0.0076	0.0144	22.0464	26.25	28.50	29.25
17	0.0069	0.0117	18.2493	25.50	24.00	23.25
18	0.0007	0.0013	2.1622	69.83	71.66	66.15
19	0.0013	0.0039	2.8532	60.64	58.80	56.96
20	0.0126	0.0387	26.0406	55.13	58.80	66.15