The Stability’s Influencing Factors and Active Control of Hydrostatic Journal Bearing

Abstract

Abstract. The hydrostatic bearings are widely applied in the field of high-speed precision grinding machine due to high precision and high stiffness. But in order to make the hydrostatic bearings more fit for the precision machining with high speed, we have to solve the instability problem of system due to rotor vibration. The factors that have effect on the stable characteristic of hydrostatic bearings are analyzed and commented. Then the research status of active control of hydrostatic journal bearing is studied. At last we take the prospect and forecast of hydrostatic bearing's development tendencies.