動圧効果を付加した静圧ジャーナル軸受(第2報) : ステップ型パッドを用いた場合の検討

概要

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This paper concerned with the improvement of the load capacity of the hydrostatic journal bearing. The hydrostatic journal bearing with a stepped slider in the recess is proposed. An . analytical approximate solution of the Reynolds equation applied to the slider is presented. Using this solution the characteristics of the hybrid bearing are calculated, and measurements on the oil film pressure load carrying capacity, locus of the journal center, friction torque and oil film temperature are carried out. The calculated results are agree well with the experimental one, and the following results can be obtained. (1) The stepped slider added in the recess is effective to the improvement of the load capacity of the hydrostatic journal bearing and the effect is remarkable in the region of high speed or large eccentricity ratio. (2) The difference between lubricant temperature in the recess and on the stepped slider is very smaller than the temperature rise in the recess. (3) In case of small eccentricity ratio, the hydrodynamic pressure on the slider slightly affects the friction torque, and the simplified analysis neglecting the influence of the hydrodynamic pressure is agree well with the experimental data.
公益社団法人精密工学会の論文
1985-04-05