A Study on Dynamic Behaviour of Thermally Distributed Exponentially Graded Rotor System with Induced Porosities

Table 3

Rotor-bearing data.

Shaft
Length (L)		0.5 m
Diameter (D)		0.02 m
Disc
		Mid-span
Mass (m)		5.5 kg
Polar moment of inertia (Ip)		0.01546 kg m^2
Diametral moment of inertia (Id)		0.00773 kg m^2
Unbalance eccentricity (e)		0.1 mm
Bearing stiffness (rigid bearings)		10^5 N/m
Damping		100 Ns/m
Material Properties	Stainless steel (SS)	Zirconia (ZrO2)
Young’s modulus (GPa)	207.8	168
Density (kg/m^3)	8166	5700
Poisson’s ratio	0.3	0.24