东华大学学报（英文版）2024，Vol.41Issue(1)：81-88,8.DOI:10.19884/j.1672-5220.202304008
真空预载型多孔质空气静压轴承的静动态特性分析
Static and Dynamic Characteristics of Vacuum Preloaded Porous Aerostatic Bearings
闫如忠 1张银宝1
作者信息
- 1. 东华大学 机械工程学院,上海 201620||东华大学 纺织装备教育部工程研究中心,上海 201620
- 折叠
摘要
Abstract
In order to further improve the bearing stiffness,the porous aerostatic bearings can obtain bidirectional stiffness without additional preload guideway by combining vacuum preloaded(VPL)technology with the bearings.To explore the influence of working conditions and structural parameters on VPL porous aerostatic bearing performance,a numerical analysis of static and dynamic characteristics was performed based on the computational fluid dynamics(CFD)method.The influences of the air supply pressure,the vacuum degree,the permeability,the vacuum suction port diameter,the perturbation amplitude and the perturbation frequency were thoroughly investigated.The analysis shows that the stiffness of VPL porous aerostatic bearings increases by 22.34%compared with that of ordinary porous bearings,and working conditions and structural parameters have a significant influence on static and dynamic characteristics.It is expected that the results can guide performance research and optimization design for the high-stiffness aerostatic bearings.关键词
真空预加载技术/计算流体力学(CFD)/静态特性/动态特性Key words
vacuum preloaded technology/computational fluid dynamics(CFD)/static characteristic/dynamic characteristic分类
信息技术与安全科学引用本文复制引用
闫如忠,张银宝..真空预载型多孔质空气静压轴承的静动态特性分析[J].东华大学学报（英文版）,2024,41(1):81-88,8.
