Research Article
Fault Diagnosis for Reducer via Improved LMD and SVM-RFE-MRMR
| Feature parameters | | | | | ā | | | | rms1 | kpf1 | app_pf1 | HF1 | rms2 | kpf2 | app_pf2 | HF2 |
| Type | Normal PF1 | Normal PF2 | 1 | 2.51 | 2.77 | 0.13 | 3.45 | 1.07 | 0.79 | 0 | 1.86 | 1 | 2.67 | 2.67 | 0.14 | 3.62 | 1.01 | 0.87 | 0.01 | 1.82 | 1 | 2.83 | 3.13 | 0.12 | 2.94 | 1.17 | 1.13 | 0.01 | 1.9 | Type | Broken tooth PF1 | Broken tooth PF2 | 2 | 7.28 | 6.39 | 0.5 | 5.92 | 1.99 | 1.39 | 0.31 | 3.6 | 2 | 10.3 | 7.98 | 0.5 | 5.81 | 2.15 | 1.69 | 0.22 | 3.56 | 2 | 10.78 | 7.57 | 0.61 | 6.7 | 1.54 | 3 | 0.14 | 3.51 | Type | Inner circle fault PF1 | Inner circle fault PF2 | 3 | 5.89 | 8.9 | 0.38 | 5.83 | 2.15 | 1.63 | 0.19 | 3.1 | 3 | 6.85 | 7.99 | 0.42 | 5.41 | 1.54 | 1.85 | 0.18 | 3.6 | 3 | 5.98 | 5.12 | 0.47 | 4.99 | 1.47 | 2.06 | 0.21 | 3.16 | Type | Outer circle fault PF1 | Outer circle fault PF2 | 4 | 7.8 | 8.45 | 0.25 | 4.19 | 2.05 | 1.31 | 0.2 | 3.17 | 4 | 7.5 | 8.32 | 0.21 | 4.42 | 1.53 | 1.38 | 0.25 | 3.19 | 4 | 8.38 | 8.37 | 0.33 | 4.22 | 1.88 | 1.26 | 0.23 | 3.15 |
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Notes. : RMS, : Kurtosis, : Approximate Entropy, : Power Spectrum Entropy. |