Investigation on Monitoring System for Pantograph and Catenary Based on Condition-Based Recognition of Pantograph

Table 1

Statistical results of contact forces in dynamical test.

Frequency (Hz)	Contact force (N)
	Mean			Min			Max			Standard deviation
	Real	Test	Relative error (%)	Real	Test	Relative error (%)	Real	Test	Relative error (%)	Real	Test	Relative error (%)
2	120.28	120.20	0.07	110.10	110.31	0.19	136.41	136.56	0.11	5.81	5.82	0.17
5	120.70	120.89	0.16	54.34	52.83	2.78	172.49	173.08	0.34	27.29	29.26	7.22
8	119.25	121.08	1.53	52.21	47.21	2.80	177.47	175.74	0.96	27.20	27.38	0.66
10	118.71	120.87	1.82	50.20	48.63	3.12	183.10	185.92	1.54	26.17	28.91	10.47