Research Article

An Intelligent Diagnostic Method for Multisource Coupling Faults of Complex Mechanical Systems

Table 2

Failure parts list.

Fault locationFault typeProcessing methodsFault size (mm)Coding

BearingOuter ringLine erosionWire cutting0.10B_OR(a)
Outer ringPittingEDM0.05B_OR(b)
Rolling elementLine erosionWire cutting0.10B_B(a)
Rolling elementPittingEDM0.05B_B(b)
Inner ringLine erosionWire cutting0.10B_IR(a)
Inner ringPittingEDM0.05B_IR(b)

GearboxPlanetary gearSevere line erosionWire cutting0.20P_1
Planetary gearSlight line erosionWire cutting0.05P_2
Planetary gearPitting on the tooth surfaceEDM0.05P_3
Planetary gearGear missing angleMilling0.10P_4
Planetary gearTooth surface microwearMilling0.02P_5
Sun gearSevere line erosionWire cutting0.20S_1