Research Article
Vibration Characteristics and Simulation Verification of the Dual-Rotor System for Aeroengines with Rub-Impact Coupling Faults
Table 5
Parameter setting of the rub-impact model.
| Parameter | I | II | III | IV |
| Rub-impact stiffness | 1 × 106 N/m | 7 × 106 N/m | 3 × 107 N/m | 0 | Friction coefficient | 0.4 | 0.4 | 0.6 | 0 | Rub-impact clearance | 1×10−7 m | 1×10−6 m | 1×10−7 m | 0 | LPC unbalance | 500 g mm | 500 g mm | 500 g mm | 500 g mm | HPC unbalance | 500 g mm | 500 g mm | 500 g mm | 500 g mm |
|
|