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 11

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

Diagnostic method	Iteration steps	Diagnostic accuracy (%)
BPNN	448	82
SOM-BPNN	389	85
PSO-SOM-BPNN	302	87
ANVTPSO-SOM-BPNN	240	92