Research Article

Deep Learning Enabled Fault Diagnosis Using Time-Frequency Image Analysis of Rolling Element Bearings

Table 24

Specificity for CWR data set.

ModelProposed CNN architecture Architecture 1Architecture 2

Scalogram 32 × 3299.6%99.7%97.4%
Scalogram 96 × 9699.8%99.9%98.7%
Spectrogram 32 × 3299.3%99.4%98.6%
Spectrogram 96 × 9699.8%99.9%98.7%
HHT 32 × 3294.2%94.7%90.1%
HHT 96 × 9699.0%99.0%93.4%