Research Article
Research on Fault Feature Extraction Method Based on NOFRFs and Its Application in Rotor Faults
Table 3
The NOFRFs of rub-impact rotor system.
| | NOFRFs | Normal | Clearance = 90 μm | Clearance = 30 μm |
| | 1.5078 × 10−4 | 1.5069 × 10−4 | 1.5051 × 10−4 | | 2.1286 × 10−8 | 4.8293 × 10−7 | 1.2208 × 10−6 | | 2.5299 × 10−9 | 1.1921 × 10−8 | 3.9750 × 10−9 | | 8.9336 × 10−10 | 5.7439 × 10−8 | 1.0286 × 10−7 | | 2.7172 × 10−9 | 2.2947 × 10−9 | 3.5165 × 10−8 | | 3.8508 × 10−10 | 1.7238 × 10−8 | 3.0804 × 10−8 |
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