Vibration Characteristics and Simulation Verification of the Dual-Rotor System for Aeroengines with Rub-Impact Coupling Faults

Figure 20

The influence of LPC unbalance on the vibration response of the dual-rotor system with the rub-impact fault (Case 4). (a) Time-domain and frequency spectrum of the low-pressure rotor at measuring points 1–4. (b) Time-domain and frequency spectrum of the high-pressure rotor at measuring points 5–8.

(a)

(b)

(c)

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