Study on the Vibration Mitigation Characteristic of Dual Clearance Squeeze Film Damper

Table 2

The parameters of DCSFD test rig.

Parameter	Support 1	Support 2
Static stiffness (N/m)		3.44
Damping (N/m/s)	844	816
Mass of journal (kg)	2	1.95
Width of film clearance (mm)	12.5	9.8
Thickness of film clearance (mm)	0.06	0.11
Thickness of SFD film clearance (mm)	0.06	0.1
Width of floating ring (mm)	12.45	9.75
Film thickness ratio:	1	1
Force amplitude (N)	10	10
Inlet pressure (MPa)	0.33	0.15
Natural frequency (HZ)	3464	4200