基于正交试验小孔节流液体静压轴承优化分析  

Optimization of small hole throttling hydrostatic bearing based on orthogonal test

作　　者：任登洲 陈佳君 尹洋[1] 甘鹏 邱春雷 向呈方 REN Dengzhou;CHEN Jiajun;YIN Yang;GAN Peng;QIU Chunlei;XIANG Chengfang

机构地区：[1]西华大学机械工程学院,四川成都610039

出　　处：《现代机械》2024年第4期52-57,共6页Modern Machinery

基　　金：四川省科技厅重点研发项目(2017GZ0356);西华大学教育质量工程项目(YTD202302)。

摘　　要：以内圆磨床小孔节流液体静压轴承为研究对象,将SOLIDWORKS建立的油膜三维模型导入ICEM中进行网格划分和边界条件命名,利用流体仿真软件FLUENT仿真分析,运用正交试验法设计试验方案分析轴承主要参数对轴承性能的影响及各参数对轴承性能影响的主次顺序。结果表明:影响液体静压轴承承载力和刚度的因素主要包括平均间隙、节流孔直径、节流孔到轴端面距离、单排节流孔数目、偏心率、供油压力、润滑油动力粘度等;轴承的主要参数对液体静压轴承承载力和刚度的敏感性差异很大;同时以承载力最大为优化准则得到优化后轴承模型参数,其承载力提升了113.99%,同时刚度也提升了98.85%。In this study we took the small hole throttling hydrostatic bearing of the internal cylindrical grinding machine as the research object.The oil film three-dimensional model established by SOLIDWORKS was imported into ICEM for mesh generation and boundary conditions naming.Fluid simulation software FLUENT was adopted for simulation analysis.The orthogonal test method was used to design the test program to analyze the effect of the main parameters of the bearing on the bearing performance and the order of the impact of each parameter.The results showed that,the factors affecting the bearing capacity and stiffness of the hydrostatic bearing were the average clearance,the diameter of throttle holes,the distance from the throttle holes to the end face of the shaft,the number of single-row throttle holes,the eccentricity,the oil supply pressure,the lubricant dynamic viscosity,etc.The effect of the main parameters on the bearing capacity and stiffness of the hydrostatic bearing was significantly different.With the maximum bearing capacity as the optimization goal,the bearing capacity of the optimized model increased by 113.99 %,and the stiffness increased by 98.85 %.

关 键 词：液体静压轴承 仿真分析 正交试验 承载力及刚度 内圆磨床 

分 类 号：TH133.36[机械工程—机械制造及自动化]