A Novel Method for Fault Diagnosis of the Two-Input Two-Output Nonlinear Mass-Spring-Damper System Based on NOFRF and MBPCA

Table 2

The recognition rate with different kernel functions.

Fault number	Fault mode	Recognition rate
		Linear kernel (%)	Polynomial kernel (%)	GRB kernel (%)	ERB kernel (%)	MLP kernel (%)
F0	Normal	96	97	100	95	97
F1	increased	87	87	88	85	82
F2	decreased	78	94	92	95	82
F3	increased	85	97	98	93	85
F4	and increased	81	85	91	90	86