Fault Diagnosis of Planetary Gearbox Based on Motor Current Signal Analysis

Figure 8

Confusion matrix of classification result with the original signal and CNN. IR represents bearing inner race fault; OR represents bearing outer race fault; B represents bearing ball fault; PG represents planet gear fault; IR (PG) represents that bearing in the gearbox has an inner race fault; SG represents sun gear fault; RG represents ring gear fault; and N represents no fault.