A Framework for Final Drive Simultaneous Failure Diagnosis Based on Fuzzy Entropy and Sparse Bayesian Extreme Learning Machine

Table 1

Simple and simultaneous failure modes description.

Failure label		Failure mode description
C1	Single failures	Normal status
C2	Single failures	Gear error
C3		Gear burr
C4		Gear hard point
C5		Misalignment
C6		Gear tooth broken
C7		Gear crack
C8	Simultaneous failures	Gear tooth broken and gear crack
C9		Gear tooth broken and gear hard point
C10		Misalignment and gear crack