Fault Diagnosis of Electric Impact Drills Based on Time-Varying Loudness and Logistic Regression

<div>(a) Healthy EID with a working sun gear connecting the motor and gearbox. (b) Healthy EID with a working ring gear. (c) Healthy EID with a working planet gear.</div>

Shock and Vibration

fig2

Figure 2

Figure 2: Fault Diagnosis of Electric Impact Drills Based on Time-Varying Loudness and Logistic Regression 