Composite Fault Diagnosis of Rolling Bearing Based on Optimized Wavelet Packet AR Spectrum Energy Entropy Combined with Adaptive No Velocity Term PSO-SOM-BPNN

Table 4

Ratio of total energy and total energy entropy of wavelet packet (radial mean value of direct fault point).

Type	sym8	db4	db5	db8	db10
Normal	0.7071	0.7075	0.7069	0.7072	0.7078
Inner ring and outer ring	0.8215	0.8218	0.8212	0.8216	0.8221
Inner ring and rolling element	0.8714	0.8710	0.8705	0.8715	0.8728
Outer ring and rolling element	1.0236	1.0220	1.0219	1.0237	1.0249