Rapid optimization design of closed rectangular hydrostatic air flotation guideway

HU Wei; LIU Jizhu; LI Tao; CHEN Feiyu; CHEN Liguo

doi:10.37188/OPE.20243212.1879

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Rapid optimization design of closed rectangular hydrostatic air flotation guideway

Micro/Nano Technology and Fine Mechanics | 更新时间：2024-07-26

- Rapid optimization design of closed rectangular hydrostatic air flotation guideway
- Optics and Precision Engineering Vol. 32, Issue 12, Pages: 1879-1890(2024)
- 作者机构：
  
  苏州大学机电工程学院，江苏苏州 215006
- 作者简介：
- 基金信息：
- DOI：10.37188/OPE.20243212.1879
  CLC： TH133.3
- Published：25 June 2024，
  
  Received：16 January 2024，
  
  Revised：15 March 2024，
- 稿件说明：
移动端阅览
胡伟,刘吉柱,李涛等.闭式矩形静压气浮导轨快速优化设计[J].光学精密工程,2024,32(12):1879-1890.

HU Wei,LIU Jizhu,LI Tao,et al.Rapid optimization design of closed rectangular hydrostatic air flotation guideway[J].Optics and Precision Engineering,2024,32(12):1879-1890.
胡伟,刘吉柱,李涛等.闭式矩形静压气浮导轨快速优化设计[J].光学精密工程,2024,32(12):1879-1890. DOI： 10.37188/OPE.20243212.1879.

HU Wei,LIU Jizhu,LI Tao,et al.Rapid optimization design of closed rectangular hydrostatic air flotation guideway[J].Optics and Precision Engineering,2024,32(12):1879-1890. DOI： 10.37188/OPE.20243212.1879.

摘要

针对闭式矩形静压气浮导轨静态性能较差，主流的优化设计方法耗时久的问题，本文快速优化设计了一款闭式矩形静压气浮轴承。首先，采用FLUENT软件搭建了矩形气浮轴承的仿真模型，采用此模型进行仿真计算，分析了不同节流孔分布位置和节流孔个数对矩形气浮轴承的静态性能影响，并确定了最优的节流孔分布位置和节流孔个数。再通过响应面优化设计方法分析拟合了节流器结构参数与气浮轴承的承载力、刚度和耗气量的曲线，结合响应面曲线图快速得到矩形气浮轴承的最优设计参数，缩短了分析时间，优化后的结构参数承载能力和刚度分别提高了11.27%和80%，耗气量降低了15.86%，最终进行了实验验证，实验测试值和仿真值曲线基本拟合一致，表明了该方法在气体静压轴承结构参数设计中的可靠性和准确性。本文对矩形静压轴承的快速设计优化具有重要参考价值。

Abstract

Aiming at the problem that the static performance of the closed rectangular hydrostatic air-bearing guide is poor and the mainstream optimization design method is time-consuming， this paper quickly optimized the design of a closed rectangular hydrostatic air-bearing. First of all， the simulation model of rectangular air-bearing was constructed by using FLUENT software， and the simulation calculation was carried out by using this model to analyze the effects of different throttle hole distribution positions and the number of throttle holes on the static performance of rectangular air-bearing， and determine the optimal throttle hole distribution position and the number of throttle holes. Then the curves of the throttle structural parameters and the bearing capacity， stiffness and air consumption of the air-bearing were analytically fitted by the response surface optimization design method， and the optimal design parameters of the rectangular air-bearing were quickly obtained by combining with the response surface curve diagram. The results show that the optimized structural parameters of the bearing capacity and stiffness are increased by 11.27% and 80% respectively， and the gas consumption is reduced by 15.86%. Finally， experimental verification is carried out， and the curves of the experimental test values and simulation values are basically fitted consistently， which demonstrates the reliability and accuracy of the method in the design of structural parameters of the gas-static bearing. This paper has important reference value for the rapid design optimization of rectangular hydrostatic bearings.

关键词

矩形气浮导轨有限元法响应面快速优化

Keywords

rectangular air flotation guidebearing capacitystiffnessoptimization

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