Research Article
Root Crack Identification of Sun Gear in Planetary Gear System Combining Fault Dynamics with VMD Algorithm
Figure 11
Each IMF of angular acceleration signal for no crack and 1# to 3# crack. (a) No crack. (b) 1# crack. (c) 2# crack. (d) 3# crack.
(a) |
(b) |
(c) |
(d) |