Aerostatic bearings design and analysis with the application to precision engineering: State-of-the-art and future perspectives

Q Gao, W Chen, L Lu, D Huo, K Cheng - Tribology International, 2019 - Elsevier
Aerostatic bearings have been employed as an essential precision engineering element
and enabling technology in numerous applications requiring precision and ultraprecision …

Improvement on load performance of externally pressurized gas journal bearings by opening pressure-equalizing grooves

J Du, G Zhang, T Liu, S To - Tribology International, 2014 - Elsevier
To improve the load performance of externally pressurized gas journal bearings (EPGJBs),
the influences of structural parameters of pressure-equalizing grooves (PEGs) such as the …

CFD analysis of a simple orifice-type feeding system for aerostatic bearings

G Belforte, T Raparelli, A Trivella, V Viktorov… - Tribology Letters, 2015 - Springer
A numerical analysis on the feeding system of externally pressurised gas bearings, for the
correction of the theoretical mass flow rate formula by means of a discharge coefficient, is …

Numerical analysis and experimental research on the angular stiffness of aerostatic bearings

H Cui, Y Wang, H Yang, L Zhou, H Li, W Wang… - Tribology …, 2018 - Elsevier
The machined surface topography in the ultra-precision machining process was obviously
affected by the angular stiffness of aerostatic bearings. In this study, a numerical model was …

Dynamics of 5-DOF aerostatic spindle with time-varying coefficients of air bearing

J Shi, H Cao, X Jin - Mechanical Systems and Signal Processing, 2022 - Elsevier
Aerostatic bearing spindle has been widely used in precision machining processes. This
paper presents a time-varying dynamic model of aerostatic spindle due to the change of air …

Effect of surface waviness on the performances of an aerostatic thrust bearing with orifice-type restrictor

H Zhuang, J Ding, P Chen, Y Chang, X Zeng… - International Journal of …, 2021 - Springer
In this paper, four waviness types are presented to investigate the effect of surface waviness
on the static performance, dynamic performance and stability of an aerostatic thrust bearing …

Investigation on the static and dynamic characteristics of 3-DOF aerostatic thrust bearings with orifice restrictor

J Shi, H Cao, X Jin - Tribology International, 2019 - Elsevier
This paper studies the static and dynamic characteristics of 3-DOF aerostatic thrust bearings
with orifice restrictor. The coupled perturbation Reynolds equations are solved …

Static load performance of a water-lubricated hydrostatic thrust bearing

M Rohmer, L San Andrés… - … of Engineering for …, 2018 - asmedigitalcollection.asme.org
In rotating equipment, thrust bearings aid to balance axial loads and control shaft position. In
turbomachinery, axial loads depend on shaft speed and pressure rise/drop on the impellers …

均压槽结构形状对静压干气密封性能影响分析

赵艳凤, 彭旭东, 江锦波, 陈源, 赵文静 - 摩擦学学报, 2017 - tribology.com.cn
静压干气密封(DGS) 中的均压槽起着均布压力和二次节流的作用, 开展了典型形状均压槽静压
DGS 的性能对比和结构优选. 基于静压气体润滑理论, 建立了圆形, 椭圆形 …

Numerical analysis of the dynamic performance of aerostatic thrust bearings with different restrictors

H Cui, Y Wang, X Yue, Y Li… - Proceedings of the …, 2019 - journals.sagepub.com
This study utilizes a dynamic mesh technology to investigate the dynamic performance of
aerostatic thrust bearings with orifice restrictor, multiple restrictors, and porous restrictor. An …