高速だ円ジャーナルすべり軸受の動的挙動 : 第2報, 圧力分布の変動と安定性の関係

抄録

In this second paper, the relationship between the variation of pressure distribution and the stability of elliptical journal bearings in a turbulent inertial flow regime it examined theoretically based on the nonlinear analysis for three different values of ellipticity ratio of m=0, 0.5 and 1.0. The nonlinear equation of motion for the rigid shaft supported on the two identical aligned elliptical bearings was solved by the improved Euler's method and the relation between the pressure distribution and the transient motion of the journal center was presented in the graphic form. From the numerical results, the effects of ellipticity ratio, turbulence and fluid film inertia on the dynamic behavior of elliptical journal bearings are clarified, and the relationship between the variation of pressure distribution and the stability is discussed.