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

Table 2

Parameters of four equivalent discs.

Disc	h (mm)	D (mm)	d (mm)	m (Kg)	J (Kg·m^2)
D1	18	330	35	14.0	Jp = 0.164, Jd = 0.101
D2	10	316	48	11.3	Jp = 0.059, Jd = 0.060
D3	35	305	73	20	Jp = 0.230, Jd = 0.120
D4	14	304	62	10	Jp = 0.102, Jd = 0.050