Certain Type Turbofan Engine Whole Vibration Model with Support Looseness Fault and Casing Response Characteristics

Table 2

Parameters of rotors.

Parameters	Disk	Disk	Disk	Disk	Disk
Mass (kg)	3.88	1.41	5.17	10.28	10.28
Cross-polar inertia (kg·m^2)	0.03	0.003	0.03	0.05	0.05
Cross-equator inertia (kg·m^2)	0.015	0.0015	0.015	0.025	0.025
Elastic modulus (Pa)	2.07	2.07	2.07	2.07	2.07
Poisson’s ratio	0.3	0.3	0.3	0.3	0.3
Density (kg/m^3)	7.8 × 10^3	7.8 × 10^3	7.8 × 10^3	7.8 × 10^3	7.8 × 10^3
Proportion damping ratio	5	5	5	5	5
Proportion damping ratio	1.35	1.35	1.35	1.35	1.35