Nonlinear Analysis of Rod Fastened Rotor under Nonuniform Contact Stiffness

Table 1

Parameters of the rod fastened rotor and bearing.

Parameters	Values
Lumped mass m1/kg	12
Lumped mass m2/kg	12
Lumped mass m3/kg	12
Lumped mass mb1/kg	3
Lumped mass mb2/kg	3
Stiffness of the shaft k/(N/m)	2.5e7
Max stiffness of interface k2/(N/m)	1.0e8
Damp coefficient of bearing c1(N·s/m)	1400
Damp coefficient of rotor c2(N·s/m)	3500
Bearing radius R(mm)	48
Bearing length Lb(mm)	25
Clearance of bearing c(mm)	0.18
Lubricant viscosity μ (Pa·s)	0.018