Fault Diagnosis of Planetary Gearbox Based on Motor Current Signal Analysis

Table 4

Fault diagnosis accuracy of test set 2.

Methods	Time domain			Frequency domain			Average (%)
	None (%)	SSA (%)	WPD (%)	None (%)	SSA (%)	WPD (%)
CNN	63.53	81.22	36.88	76.41	74.88	61.88	65.80
PCA-SVM	57.09	67.56	48.12	80.91	81.16	65.00	66.64
PCA-DT	32.09	44.50	28.75	71.03	69.09	45.62	48.51
PCA-RF	44.72	64.22	41.25	78.37	78.53	63.44	61.76
PCA-AdaBoost	47.53	67.53	45.94	81.34	79.91	60.31	63.76
Average	48.99	65.01	40.19	77.61	76.71	59.25