小型可変絞り要素による無限剛性静圧スラスト軸受の動特性向上法

抄録

This paper proposes a method of improving the dynamic characteristics of infinitely stiff hydrostatic thrust bearing using a miniaturized self-controlled restrictor. This bearing has a very small self-controlled restrictor of 3.0 mm diameter and can obtain a very high static bearing stiffiness(nearly infinite stiffness). Influences of various design parameters on the dynamic characteristics of the proposed bearing are investigated, theoretically and experimentally. As a result, it was found that the miniaturization of a self-controlled restrictor can greatly improve the step response and the frequency response characteristics of this kind of hydrostatic thrust bearing.