气体静压多孔质球面轴承静态性能分析  

ANALYSIS ON AEROSTATIC POROUS SPHERICAL BEARINGS STATIC PERFORMANCE

作　　者：卢泽生[1] 杜金名[2] 孙雅洲[1] 

机构地区：[1]哈尔滨工业大学机电学院,哈尔滨150001 [2]第二炮兵装备研究院第三研究所,北京100085

出　　处：《机械工程学报》2004年第12期115-119,共5页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(59975024)

摘　　要：与传统的小孔节流气体静压轴承相比,气体静压多孔质轴承具有高承载能力、高阻尼和很好的稳定性等。气体静压多孔质球面轴承具有合力始终对准球心,轴承运转平稳等优点,既具有轴向限制同时具有径向限制,在工业当中应用相当普遍。给出了球面轴承的理论分析、有限元推导过程,基于有限元推导过程给出了球面轴承的理论计算静态性能。在自行研制的试验台上进行气体静压试验,由此得到轴承的静态性能。试验结果和理论计算结果之间的吻合良好,从而说明理论计算的正确性和可行性。Compared with conventional orifice restriction aerostatic bearings, aerostatic porous bearings have some advantages for example high load capacity, high damp, wider stability, etc. Aerostatic porous spherical bearings have some merits that composition of forces always points to the center of sphere and bearings operation is smooth. It has radial and axial restriction and has a wide application in industry. The theoretical analysis of spherical bearing, the process of finite element method and theoretical static performance are presented. Experiments are done on the self-manufactured rig to acquire the static performance of aerostatic porous spherical bearing, on which the performance of several types of bearings can be achieved. From the compare of numerical results and the experimental results, there is little difference between them, thus it can be seen that the finite element method is validated and feasible.

关 键 词：气体静压轴承 球面轴承 静态性能 有限元法 

分 类 号：TH133.35[机械工程—机械制造及自动化]