Research on Feature Extraction of Performance Degradation for Flexible Material R2R Processing Roller Based on PCA

Table 4

Cumulative variance contribution rate table of roll vibration signals for flexible material R2R system.

Eigenvalue number	Eigenvalue	Variance ratio	Accumulated contribution rate
	21.213	0.930	0.930
	0.924	0.041	0.971
	0.427	0.019	0.989
	0.145	0.006	0.995
	0.063	0.003	0.998
	0.027	0.001	0.999
	0.009	0.000	1.000
	0.005	0.000	1.000
	0.001	0.000	1.000
	0.000	0.000	1.000