Influence of the Radial Clearance of a Squeeze Film Damper on the Vibratory Behavior of a Single Spool Gas Turbine Designed for Unmanned Aerial Vehicle Applications

Table 3

Physical and geometric properties of the discs.

Discs	D1	D2	D3	D4	D5	D6
Material	Al7178-T6	Al7178-T6	Al2024-T8	Ti-6Al-4V	Ti-6Al-4V	In713LC
Young’s modulus, GPa	71.7	71.7	72.4	113.8	113.8	163.3
Density, kg/m^3	2,830	2,830	2,870	4,430	4,430	8,000
Poisson’s ratio	0.33	0.33	0.33	0.342	0.342	0.382
Width, m	0.02	0.02	0.02	0.02	0.02	0.03
Inner diameter, m	0.08	0.08	0.08	0.08	0.08	0.055
Outer diameter, m	0.19	0.21	0.23	0.24	0.25	0.25