Bearing Fault Vibration Signal Feature Extraction and Recognition Method Based on EEMD Superresolution Sparse Decomposition

Table 1

Selecting 6 types of fault conditions and calculating their energy entropy.

Serial number	Normal	Outer ring 4 scratches	Outer ring 6 scratches	Inner circle 4 scratches	Inner circle 6 scratches	Roller 4 scratches	Roller 6 scratches
Energy entropy	1.4328	1.2507	1.2336	1.34595	1.3347	1.2196	1.1735