유체 윤활 저널 베어링의 소음 예측

Abstract

Noise estimating procedures of oil lubricated journal bearings are presented.Nonlinear analysis of rotor-bearing system including unbalance mass of the rotor is performed in order to obtain acoustical properties of the bearing. Acoustical properties of the bearing are inestigated through frequency analysis of the pressure fuctuation of the fluid film calculated from the nonlinear analysis. Noise estimating procedures presented in this paper could aid in the evaluation and understanding of acoustical properties of oil lubricated journal bearings.