A Novel Fault Diagnosis Approach for Rolling Bearing Based on CWT and Adaptive Sparse Representation

Figure 9

Rolling bearing test apparatus. 1. flexible coupling; 2. left bearing pedestal; 3. speed sensor; 4. Shaft; 5. mass disc; 6. Acceleration sensor; 7. right bearing pedestal; 8. hydraulic gauge of preload display; 9. driving motor; 10. driving belt.