静圧球面軸受の最適設計 : 流体潤滑域の解析解

抄録

The optimum design on hydrostatic spherical bearings in fluid film lubrication is studied theoretically. The analytical solutions for load-carrying capacity, recess pressure, flow rate, frictional torque, power loss and stiffness are derived for both the fitted and clearance type bearings with a capillary or an orifice restrictor. Their power loss and stiffness as a function of the equivalent radius of loads and the size of restrictors are illustrated. The optimum size of their restrictors is obtained. The effects of the seat angles, clearance-ratio and operating conditions on the bearing characteristics and the optimum size based on the minimum power loss are clarified.