Nonlinear Responses of a Rotor-Bearing-Seal System with Pedestal Looseness

Table 1

Model parameters of the rotor and the bearing.

Parameters	Values
m1, m2, m3, m4, m5 (kg)	0.0439, 0.02343, 0.5919, 0.5919, 0.09633
Jp1, Jd1 (kg⋅m^2)	2.957 × 10^–6, 3.196 × 10^–6
Jp2, Jd2 (kg⋅m^2)	0.2929 × 10^–6, 2.966 × 10^–6
Jp3, Jd3 (kg⋅m^2)	4.735 × 10^–4, 2.478 × 10^–4
Jp4, Jd4 (kg⋅m^2)	4.735 × 10^–4, 2.478 × 10^–4
Jp5, Jd5 (kg⋅m^2)	7.526 × 10^–6, 8.780 × 10^–6
η (Pa⋅s)	0.04
kblx, kbly (N/m)	2 × 10^8, 2 × 10^8
cblx, cbly (N⋅s/m)	2 × 10^3, 2 × 10^3
C, D, L (mm)	0.3, 25, 10