Research Article
An Intelligent Diagnostic Method for Multisource Coupling Faults of Complex Mechanical Systems
| Fault location | Fault type | Processing methods | Fault size (mm) | Coding |
| Bearing | Outer ring | Line erosion | Wire cutting | 0.10 | B_OR(a) | Outer ring | Pitting | EDM | 0.05 | B_OR(b) | Rolling element | Line erosion | Wire cutting | 0.10 | B_B(a) | Rolling element | Pitting | EDM | 0.05 | B_B(b) | Inner ring | Line erosion | Wire cutting | 0.10 | B_IR(a) | Inner ring | Pitting | EDM | 0.05 | B_IR(b) |
| Gearbox | Planetary gear | Severe line erosion | Wire cutting | 0.20 | P_1 | Planetary gear | Slight line erosion | Wire cutting | 0.05 | P_2 | Planetary gear | Pitting on the tooth surface | EDM | 0.05 | P_3 | Planetary gear | Gear missing angle | Milling | 0.10 | P_4 | Planetary gear | Tooth surface microwear | Milling | 0.02 | P_5 | Sun gear | Severe line erosion | Wire cutting | 0.20 | S_1 |
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