摘要
空气静压轴承具有较小摩擦、运转平稳、使用寿命长、回转精度高且无环境污染等优点.以孔式节流空气静压轴承作为研究对象,利用建模软件,建立孔式节流空气静压轴承三维实体计算模型.通过计算流体动力学(CFD)原理,对该模型网格划分后模拟仿真轴承在一定偏心率下的旋转状态,计算并得出气膜压力分布图,分析其在不同供气压强和不同旋转速度对轴承承载力的影响,并得出影响轴承承载力因素的变化曲线.研究结果对孔式节流空气静压轴承结构设计优化具有可靠性的指导意义.
Air bearing has less friction than the other bearings.Moreover,it has a smooth operation,long service life,high precision rotary and no environmental pollution,etc.In this paper,a three-dimensional model is established to simulate the holes throttle air bearing.The model is meshed into the unstructured grid and the simulation results are obtained.Simulation results of bearing in rotating state is analyzed and studied under the influence of gas pressure and rotating speed.The air film pressure distribution of aerostatic bearing is obtained based on the results of the CFD.Finally,the paper summarizes the influence of the corresponding factors on the bearing capacity.
出处
《有色金属材料与工程》
CAS
2017年第5期280-285,共6页
Nonferrous Metal Materials and Engineering
关键词
空气静压轴承
孔式节流
供气压强
旋转速度
承载力
air static bearing
hole type throttle
inlet pressure
rotating speed
bearing capacity
