Analysis of Vehicle Platform Vibration Based on Empirical Mode Decomposition

Figure 11

IMFs of VPV data processing by different methods. (a) IMFs obtained by EMD. (b) IMFs obtained by EEMD with WGN in 0 dBW. (c) IMFs obtained by EEMD with WGN in −10 dBW. (d) IMFs obtained by EEMD with WGN in −30 dBW. (e) IMFs obtained by EEMD with WGN in −50 dBW. (f) IMFs obtained by NSEEMD proposed in this study.

(a)

(b)

(c)

(d)

(e)

(f)