Vibration Signal Analysis of Roadheader Based on Referential Manifold Learning

Table 3

Time-frequency analysis results of vibration data of sensor 1.

Parameters	Health data								Fault data
pk	7.06	7.130	7.22	6.18	13.95	6.459	8.835	7.228	32.27	29.51	27.59	30.77	24.20	36.61	27.04	32.67
st	1.38	1.441	1.32	1.24	2.004	1.265	1.509	1.323	4.50	4.77	3.75	4.57	4.27	3.57	3.47	3.91
me	1.14	1.191	1.10	1.05	1.558	1.063	1.227	1.103	3.20	3.40	2.71	3.22	3.09	2.51	2.50	2.80
va	6.14	5.987	6.55	5.88	8.957	6.077	7.199	6.555	10.08	8.68	10.17	9.54	7.82	14.58	10.83	11.67
Kr	6.05	6.788	5.46	4.31	19.20	4.627	8.359	5.465	101.3	109.3	71.20	110.2	82.06	81.30	66.60	82.48
L	6.93	6.767	7.39	6.61	10.37	6.846	8.193	7.392	12.55	10.85	12.44	11.97	9.65	17.96	13.21	14.37
C	5.11	4.949	5.46	4.96	6.963	5.104	5.854	5.462	7.18	8.18	7.36	6.73	5.67	10.26	7.80	8.35
S	1.20	1.21	1.20	1.185	1.286	1.190	1.230	1.200	1.40	1.40	1.38	1.42	1.38	1.42	1.39	1.40
E1	8.38	7.66	8.82	10.3	9.882	11.26	6.709	8.820	10.00	10.24	10.79	5.89	10.17	10.11	11.88	6.66
E2	6.51	6.57	6.29	5.83	8.954	5.044	7.308	6.293	12.54	12.63	11.96	14.04	14.89	15.90	10.26	14.97
E3	2.12	1.77	1.83	2.52	3.002	3.254	1.658	1.837	6.21	7.36	6.15	6.32	8.09	5.21	5.04	4.87
E4	8.24	8.92	7.74	7.55	9.833	6.451	9.834	7.740	12.07	11.98	10.05	11.97	11.50	10.90	9.63	11.56
E5	12.6	13.26	12.2	9.25	11.40	9.183	14.43	12.21	17.79	16.71	15.94	17.55	14.24	14.55	12.16	19.54
E6	37.37	33.72	39.91	46.21	31.30	46.52	29.06	39.91	12.45	11.89	20.41	9.39	18.08	18.11	19.12	10.54
E7	23.01	26.62	21.56	15.87	22.89	15.97	29.73	21.56	22.83	23.24	20.80	29.91	15.95	24.29	27.09	28.08
E8	1.732	1.439	1.614	2.359	2.725	2.303	1.264	1.614	6.11	5.94	3.90	4.93	7.07	0.92	4.82	3.78