181 / 2024-09-01 14:41:56

Fault Signal Simulation of Cracked Gear System

Condition indicators, dynamic modeling, fault detection, signal simulation

A simulation approach was proposed in this work

for monitoring fault status of cracked gear systems. The approach

calculates the dynamic response signals from a dynamic model

of the cracked gear system. First, time-varying meshing stiffness

(TVMS) of the cracked gear pair (CGP) was computed by

slicing method considered the coupling effect. Second, a novel

12 DOF dynamic model was constructed by using TVMS and

tooth nonequilibrium moment. Subsequently, fault features of

the cracked gears were extracted by the investigation of the

dynamic response. The results demonstrate the proposed method

(PM) effectively monitors cracked gear system condition, and

the condition indicators were sensitive to the cracked status and

system resonance.