2004•Power engineeringRequires access

Research on Nonlinear Oil Film Force and Its Stability of Journal Bearing

Xie Yong-bo

Abstract

Based on the analysis of the oil film force of a journal bearing, four characteristic coefficients of the journal bearing are derived. Moreover, according to fluid-structure-interaction equilibrium equations, a stability criterion equation of the oil film-rotor system is presented, which can explain the acting mechanism of the oil film force on the rotor. The dynamic destabilization characteristics of the journal bearing are given by testing on the work set. Figs 6 and refs 6

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Key concepts: Bearing (navigation), Nonlinear system, Work (physics), Rotor (electric), Stability (learning theory), Engineering, Mechanics, Materials science