Research on the Simulation of Wheelset Response Characteristic Identification of Railway Fastener Loosening

Table 4

Orthogonal index of each component in EMD and OEMD1.

IMF	1	2	3	4	5	6	7	8
1	0.5	8.86e − 2	2.80e − 3	6.89e − 3	1.11e − 2	7.31e − 2	1.80e − 2	1.70e − 2
2	4.76e − 17	0.5	6.19e − 4	2.36e − 3	1.02e − 2	1.83e − 2	2.16e − 3	1.07e − 2
3	3.15e − 18	2.76e − 17	0.5	5.84e − 2	1.92e − 2	1.13e − 2	6.07e − 3	1.03e − 3
4	3.10e − 17	1.07e − 17	4.52e − 17	0.5	3.80e − 2	6.65e − 3	1.17e − 2	3.37e − 4
5	2.27e − 17	1.17e − 17	3.00e − 17	8.13e − 18	0.5	6.29e − 2	9.82e − 3	1.89e − 3
6	1.64e − 18	1.24e − 17	3.46e − 17	1.37e − 17	2.66e − 16	0.5	5.60e − 2	1.81e − 2
7	3.87e − 20	1.97e − 18	2.60e − 18	4.42e − 17	5.67e − 17	1.23e − 16	0.5	9.93e − 2
8	1.53e − 2	2.80e − 3	3.90e − 3	3.95e − 3	3.71e − 4	1.65e − 2	4.25e − 2	0.5