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

Figure 14

Decomposition results of EMD and OEMD3: (a, b) fastener is loosened by 50% in condition 1. (c, d) Fastener is loosened by 50% in condition 1. (a) EMD decomposition (50%). (b) OEMD3 decomposition (50%). (c) EMD decomposition (100%). (d) OEMD3 decomposition (100%).

(a)

(b)

(c)

(d)