曲轴连杆轴颈静压轴承的设计与数值模拟

Design and Numerical Simulation of the Hydrostatic Bearing on the Connecting Rod Journal of the Crank

针对静压轴承在曲轴连杆主轴颈上的应用问题,设计了油腔位于连杆主轴颈上的特殊结构静压轴承和油路通道.为了保证油源压力和轴承直径的均衡,改进了静压轴承的设计方法,确定了油源压力,计算了主要参数,最后确定了满足刚度无穷大条件的K-β0值.采用流体动力学仿真软件对所设计的静压轴承进行仿真分析,得到了轴承的压力等高线和速度矢量图,由此得到了静压轴承内部的压力及速度状态.

In order to use a hydrostatic bearing for a connecting rod journal,it must be equipped with a special structure and oil conducting channels designed for hydrostatic bearings.To ensure the balance between oil pressure and bearing diameter, this paper provides design improvements,determines a suitable oil pressure,calculates the parameters of the hydrostatic bearing,and fixes the K-β0 value to meet the conditions of the maximum stiffness.Hydrokinetic simulation software was used to analyze the hydrostatic bearing,and to draw the contours of pressure and the velocity vector.The internal pressure and speed conditions of the hydrostatic bearing are shown in the figures.