ACO-Initialized Wavelet Neural Network for Vibration Fault Diagnosis of Hydroturbine Generating Unit

Table 3

Diagnosis results of three methods.

Fault types	Wavelet neural network	ACO wavelet neural network	ACO-initialized wavelet neural network	Object values
Vortex with eccentric	1.1073	1.0925	1.0955	1
Unbalance	1.8307	2.1806	2.0564	2
Misalignment	2.7499	2.8566	2.9255	3
Normal	3.9745	3.9700	3.9723	4