Investigation on the Static Performance of Surface-Throttling Frictionless Pneumatic Cylinder through Finite Element Method

IF 3.1 3区工程技术 Q2 ENGINEERING, MECHANICAL

Lubricants Pub Date : 2024-07-14 DOI:10.3390/lubricants12070254

Jingfeng Xu, Siyu Gao, Lizi Qi, Qiang Gao, Min Zhu, Hongbin Yang, Yinze Li, Wenyuan Wei, Lihua Lu

{"title":"Investigation on the Static Performance of Surface-Throttling Frictionless Pneumatic Cylinder through Finite Element Method","authors":"Jingfeng Xu, Siyu Gao, Lizi Qi, Qiang Gao, Min Zhu, Hongbin Yang, Yinze Li, Wenyuan Wei, Lihua Lu","doi":"10.3390/lubricants12070254","DOIUrl":null,"url":null,"abstract":"The equilibrium system is essential for the high-precision movement of the ultra-precision vertical axis. However, the complex assembly process makes orifice-throttling frictionless cylinders difficult to manufacture and prone to air hammering. Surface-throttling frictionless pneumatic cylinders effectively avoid these problems. This paper establishes an improved finite element method (FEM) model of a novel surface-throttling frictionless pneumatic cylinder to investigate its static performance. Furthermore, the static equilibrium calculation of the dual-cylinder system is concerned. The radial bearing capacity and support force requirements for the surface-throttling aerostatic bearings are obtained. The outcomes provide theoretical guidance for optimizing cylinder parameters. It ensures that the ultimately optimized cylinder meets the requirements for radial bearing capacity and support force of the ultra-precision vertical axis while minimizing air consumption. Finally, the accuracy of the proposed method is verified through computational fluid dynamics (CFD) calculation and experiments.","PeriodicalId":18135,"journal":{"name":"Lubricants","volume":null,"pages":null},"PeriodicalIF":3.1000,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lubricants","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.3390/lubricants12070254","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The equilibrium system is essential for the high-precision movement of the ultra-precision vertical axis. However, the complex assembly process makes orifice-throttling frictionless cylinders difficult to manufacture and prone to air hammering. Surface-throttling frictionless pneumatic cylinders effectively avoid these problems. This paper establishes an improved finite element method (FEM) model of a novel surface-throttling frictionless pneumatic cylinder to investigate its static performance. Furthermore, the static equilibrium calculation of the dual-cylinder system is concerned. The radial bearing capacity and support force requirements for the surface-throttling aerostatic bearings are obtained. The outcomes provide theoretical guidance for optimizing cylinder parameters. It ensures that the ultimately optimized cylinder meets the requirements for radial bearing capacity and support force of the ultra-precision vertical axis while minimizing air consumption. Finally, the accuracy of the proposed method is verified through computational fluid dynamics (CFD) calculation and experiments.

查看原文本刊更多论文

通过有限元法研究表面节流无摩擦气缸的静态性能

平衡系统对于超精密垂直轴的高精度运动至关重要。然而，复杂的装配过程使得孔口节流无摩擦气缸难以制造，并且容易产生气锤现象。表面节流无摩擦气缸可有效避免这些问题。本文建立了一种新型表面节流无摩擦气缸的改进型有限元法（FEM）模型，以研究其静态性能。此外，还对双气缸系统进行了静态平衡计算。得出了表面节流气静轴承的径向承载能力和支撑力要求。计算结果为优化气缸参数提供了理论指导。它确保了最终优化的气缸在满足超精密垂直轴的径向承载能力和支撑力要求的同时，最大限度地减少空气消耗量。最后，通过计算流体动力学（CFD）计算和实验验证了所提方法的准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Lubricants Engineering-Mechanical Engineering

CiteScore

3.60

自引率

25.70%

发文量

293

审稿时长

11 weeks

期刊介绍： This journal is dedicated to the field of Tribology and closely related disciplines. This includes the fundamentals of the following topics: -Lubrication, comprising hydrostatics, hydrodynamics, elastohydrodynamics, mixed and boundary regimes of lubrication -Friction, comprising viscous shear, Newtonian and non-Newtonian traction, boundary friction -Wear, including adhesion, abrasion, tribo-corrosion, scuffing and scoring -Cavitation and erosion -Sub-surface stressing, fatigue spalling, pitting, micro-pitting -Contact Mechanics: elasticity, elasto-plasticity, adhesion, viscoelasticity, poroelasticity, coatings and solid lubricants, layered bonded and unbonded solids -Surface Science: topography, tribo-film formation, lubricant–surface combination, surface texturing, micro-hydrodynamics, micro-elastohydrodynamics -Rheology: Newtonian, non-Newtonian fluids, dilatants, pseudo-plastics, thixotropy, shear thinning -Physical chemistry of lubricants, boundary active species, adsorption, bonding