Dynamic Parameter Identification of Hydrodynamic Bearing-Rotor System

Table 2

Identification results of dynamic characteristic coefficients.

Stiffness coefficients (10^9 N/m)				Damping coefficients (10^8 N⋅s/m)
Guide bearing	Upper	Lower	Water	Guide bearing	Upper	Lower	Water
	0.95	7.85	1.26		2.82	10.03	4.61
	0.46	5.43	0.89		0.78	3.59	0.94
	−0.53	−5.51	−0.94		0.86	3.74	1.04
	1.25	8.19	1.52		5.94	20.44	10.06