空气静压型快刀伺服系统的流体动力学仿真分析  

Hydrodynamic simulation analysis of aerostatic fast tool servo system

作　　者：陈向阳 周猛 邹喜聪 CHEN Xiang-Yang;ZHOU Meng;ZOU Xi-Cong(School of Mechanical and Electrical Engineering,Heilongjiang University,Harbin 150080,China)

机构地区：[1]黑龙江大学机电工程学院,哈尔滨150080

出　　处：《黑龙江大学工程学报》2022年第1期75-82,共8页Journal of Engineering of Heilongjiang University

基　　金：黑龙江省高校基本科研业务费黑龙江大学专项资金项目(RCCXYJ201809)。

摘　　要：以自主设计的空气静压型快刀伺服系统作为研究对象,建立空气静压导轨的气体润滑基本方程,推导三维稳态Reynolds方程,获得空气静压导轨的承载力和刚度方程。通过FLUENT软件进行CFD仿真,研究空气静压导轨的供气压力、气膜厚度与承载力、刚度的影响关系。结果表明,为获得较强承载力和刚度,气膜设计厚度一般为15~25μm。适当提高供气压力有益于提高承载力和刚度。A self-developed aerostatic fast tool servo system was designed and studied,the basic equation of gas lubrication of the aerostatic slideway was established,the three-dimensional steady-state Reynolds equation was further derived,and the equations representing the bearing capacity and stiffness of the aerostatic slideway were obtained.CFD simulation is carried out through FLUENT software to investigate the influence of air supply pressure,air film thickness on the bearing capacity and stiffness of aerostatic slideway.The results show that the design thickness of the air film should generally be in the range of 15~25μm in order to obtain strong bearing capacity and stiffness.Properly increasing the air supply pressure is beneficial to improve the bearing capacity and stiflness.

关 键 词：快刀伺服系统 空气静压导轨 空气动力学仿真 计算流体动力学 

分 类 号：TG71[金属学及工艺—刀具与模具] TP391.9[自动化与计算机技术—计算机应用技术]