Research Article
Study on Intelligent Diagnosis of Rotor Fault Causes with the PSO-XGBoost Algorithm
Table 2
The specific rotor fault causes.
| Number | Fault type | Cause description | Number of samples | Label |
| 1 | Rubbing fault (F1) | Rubbing at shaft seal caused by cylinder deformation | 50 | C1 | 2 | Rubbing at shaft seal caused by the fast rate of loading up | 50 | C2 | 3 | Rubbing at shaft seal caused by the long time of low load remaining | 50 | C3 | 4 | Rotor rubbing with oil baffle | 50 | C4 | 5 | Mass imbalance fault (F2) | Poor stiffness of bearing pedestal | 50 | C5 | 6 | Fracture and falling off of rotating parts (blades and coupling wind shields) | 50 | C6 | 7 | Other reasons | 50 | C7 | 8 | Self-excited oscillation (F3) | Poor stability of bearing | 50 | C8 | 9 | Excessive journal disturbance | 50 | C9 |
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