流体静压多孔质球面轴承静态性能分析  

Analysis of Static Performance of Hydrostatic and Aerostatic Porous Spherical Bearings

作　　者：杜金名[1] 田春祥[1] 

机构地区：[1]第二炮兵装备研究院,北京100085

出　　处：《润滑与密封》2006年第4期92-94,共3页Lubrication Engineering

摘　　要：对流体静压多孔质球面轴承进行理论分析,给出了其有限元计算方法,同时利用实验验证理论计算的正确性。结果表明,气体静压实验数值和有限元计算结果吻合良好,实验数值和有限元计算结果之间的误差小于10%,产生误差的原因是有限元数值计算没有考虑到流体的惯性效应、速度滑移、多孔质球窝的变形以及轴承表面粗糙度的影响;气体静压球面轴承的承载能力和静态刚度明显小于液体静压球面轴承,气体静压球面轴承刚度低的主要原因是所用的多孔材料孔隙度较大,即多孔材料的渗透率较大。The theoretical analysis and finite element method（ FEM ） of hydrostatic and aerostatic porous bearings was presented. The experiment was done so as to verify the correction of theoretical analysis. Result shows that aerostatie porous beating＇ s experiment result is similar with FEM＇ s,the difference is whin 10%. The cause of difference is the FEM com putation did not consider the inertial effect, velocity slip, deformation of porous spheric and surface roughness. The load capacity and static stiffness of aerostatie porous spherical bearing is well smaller than that of hydrostatic porous sphrieal bearings, the main cause is that the porosity of porous material chosen is big.

关 键 词：流体静压 多孔质 球面轴承 静态性能 

分 类 号：TH133.3[机械工程—机械制造及自动化]