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

Table 3

Test sample data.

No.	Variance	Effective values	Kurtosis index	Current A	Current B	Current C
1	0.0096	0.0031	3.6624	123.00	117.00	125.25
2	0.0015	0.0081	2.7834	114.00	109.50	101.25
3	0.0015	0.0074	2.7603	115.50	115.50	108.00
4	0.0015	0.0081	2.7889	114.75	114.75	107.25
5	0.0010	0.0038	2.9848	120.00	131.25	132.75
6	0.0011	0.0342	4.0286	159.90	152.10	162.83
7	0.0017	0.0089	3.0617	148.20	142.35	131.63
8	0.0017	0.0081	3.0363	150.15	150.15	140.40
9	0.0017	0.0089	3.0678	149.18	149.18	139.43
10	0.0011	0.0042	3.2833	156.00	170.63	172.58
11	0.0008	0.0021	3.0072	26.25	24.75	24.00
12	0.0013	0.0056	2.4134	27.00	25.50	26.25
13	0.0011	0.0039	2.5398	22.50	21.75	26.25
14	0.0012	0.0052	3.0413	27.75	27.75	26.25
15	0.0013	0.0057	2.9891	29.25	27.75	28.50
16	0.0014	0.0062	2.6547	35.10	33.15	34.13
17	0.0014	0.0063	3.2880	38.03	36.08	37.05
18	0.0013	0.0057	3.3454	36.08	36.08	34.13
19	0.0012	0.0043	2.7938	29.25	28.28	34.13
20	0.0009	0.0023	3.3079	34.13	32.18	31.20