基于气固耦合的静压气体轴承静态性能仿真研究

为了探究静压气体轴承的静态性能,运用CFD软件进行气固耦合仿真,对可变节流静压气体止推轴承的静态性能相关影响因素进行研究,得到不同状况下的轴承静态性能变化规律.结果表明:可变节流静压气体轴承速度流场变化过渡更为平稳,可有效促进工作时稳定性;提高供气孔压力可以提高轴承的承载力和刚度,同时耗气量会明显增加;增大节流孔的直径...

Simulation Study on Static Performance of Aerostatic Bearing Based on Gas Solid Coupling

In order to explore the static performance of hydrostatic gas bearing,the gas-solid coupling simulation is carried out by using CFD software,the influencing factors of the static performance of variable throttle hydrostatic gas thrust bearing are studied,and the variation laws of the static performance of the bearing under different conditions are obtained.The results show that the transition of velocity and flow field of variable throttle hydrostatic gas bearing is more stable,which can effectively promote the stability during operation;When the pressure of the air supply hole is increased,the bearing capacity and stiffness of the bearing can be improved,and the air consumption will increase significantly;Increasing the diameter of the orifice can effectively improve the bearing capacity,but the peak stiffness decreases and the air consumption increases.