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 12

Comparison of bearing fault diagnosis results (gearbox axial direction).

Diagnostic method	Iteration steps	Diagnostic accuracy (%)
BPNN	576	91
SOM-BPNN	415	93
PSO-SOM-BPNN	282	95
ANVTPSO-SOM-BPNN	182	96