Parameter Analysis of an Intershaft Dual-Rotor with the Application of Squeeze Film Dampers

Figure 12

Amplitude-frequency curves when two SFDs are implemented on the front and the rear bearing of the low-pressure shaft with different sets of clearances (a: no SFD, b: 0.22 mm and 0.18 mm, c: 0.2 mm and 0.2 mm, d: 0.18 mm and 0.22 mm).