Research Article
Enhanced Bearing Fault Detection Using Step-Varying Vibrational Resonance Based on Duffing Oscillator Nonlinear System
Table 4
Ind’s with various bearing fault types processed by different WSD methods.
| | Fault types | Envelope signal
Ind | MSTSR output
Ind | WSSR output
Ind | WSGSR output
Ind | SVVR output
Ind |
| | Inner race | 248.6 | 519.2 | 276.9 | 133.3 | 1369.6 | | Outer race | 359.4 | 1000 | 386.2 | 352.1 | 1120.9 | | Rolling element | 89.4 | 205 | 106.9 | 186.9 | 649.4 |
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