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

Table 1

The fault description of the mass-spring-damper system.

Fault number	Fault mode	Parameters
F0	Normal	,
F1	increased	, ,
F2	decreased	, ,
F3	increased	, ,
F4	and increased	, ,