Shafting Misalignment Malfunction Quantitative Diagnosis Based on Speed Signal SVD-HT and CSF-PPSO-ESN Method

Table 4

Three groups of verification—repeating experimental data of angular misalignment.

Standard angular misalignment (°)	The misaligned malfunction diagnosis results using the CSF-PPSO-ESN method (°)			The misaligned malfunction diagnosis results using the order spectrum analysis and RBF neural network (°)
	Group one	Group two	Group three	Group one	Group two	Group three
0.001	0.004	0.008	0.002	0.043	0.015	0.007
0.252	0.254	0.249	0.253	0.272	0.241	0.218
0.501	0.507	0.498	0.497	0.452	0.476	0.517
0.749	0.749	0.748	0.752	0.747	0.789	0.715
1.000	0.997	1.002	0.996	0.987	1.038	0.963
1.251	1.249	1.252	1.255	1.221	1.253	1.272
1.499	1.502	1.498	1.503	1.537	1.506	1.468
1.751	1.748	1.751	1.754	1.784	1.716	1.749
2.000	2.003	1.997	2.002	2.028	2.008	1.974