Research Article
Vibration Characteristics and Simulation Verification of the Dual-Rotor System for Aeroengines with Rub-Impact Coupling Faults
Table 6
Parameter setting of the rub-impact model.
| | Parameter | I | II | III |
| | Rub-impact stiffness | 3 × 106 N/m | 3 × 106 N/m | 3 × 106 N/m | | Friction coefficient | 0.4 | 0.4 | 0.6 | | Rubbing clearance | 1×10−7 m | 1×10−6 m | 1×10−7 m | | LPC unbalance1 | 500 g mm | 500 g mm | 500 g mm | | HPC unbalance | 500 g mm | 500 g mm | 500 g mm |
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