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

Figure 17

The vibration of the dual-rotor system with slight rubbing (case 1). (a) Time-domain diagram of each measuring point. (b) Spectrum of each measuring point. (c) Axis orbit of the low-pressure rotor. (d) Axis orbit of the high-pressure rotor.

(a)

(b)

(c)

(d)