506 多孔質浮動ブッシュを用いた静圧空気ジャーナル軸受の高速安定性に関する研究(OS-4 機械要素技術)

Abstract

In this paper, a new design of an aerostatic journal bearing with porous floating bush was proposed and instability of proposed bearing at high speeds was investigated experimentally. Test spindle supporting by proposed porous floating bush was constructed and succeeded in rotating a 12mm diameter shaft over 300,000rpm. It is consequently found that using the proposed floating porous bush can greatly improve the whirling stability of a rotor at high speeds.