Results 41 to 50 of about 138 (128)

Study on Dynamic Characteristics of Aerostatic Bearing with Elastic Equalizing Pressure Groove

Shock and Vibration, Volume 2018, Issue 1, 2018., 2018
Microvibration has an important influence on the dynamic performance of aerostatic bearings. Dynamic stiffness and equivalent damping coefficient are the main indexes to evaluate the dynamic characteristics of the aerostatic bearing. In order to study the dynamic characteristics of a new type of aerostatic bearing with the elastic equalizing pressure ...
Xiao-long Zhao, Hao Dong, Zhou Fang, Deng-di Chen, Jun-an Zhang, Luca Landi   +5 more
wiley   +1 more source

Bearing Performance Analysis of the Thermal and Surface Roughness Effects by Finite Element Method on Slider Bearings Through Non‐Newtonian Fluid‐Type Lubricant

International Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.
The finite element method was used in this study to explore the impact of surface roughness and thermal characteristics on slider bearings with non‐Newtonian power‐law fluid flow lubricant. One‐dimensional transverse and longitudinal surface roughness models were considered under the stochastic assumption that roughness has a Gaussian random ...
Girma Desu Tessema, Getachew Adamu Derese, Awoke Andargie Tiruneh, Marco Pizzarelli   +3 more
wiley   +1 more source

Effects of Surface Waviness on the Nonlinear Vibration of Gas Lubricated Bearing‐Rotor System

Shock and Vibration, Volume 2018, Issue 1, 2018., 2018
This paper presents the effects of the surface waviness on the nonlinear dynamic performance of a gas bearing‐rotor system. The coupled vibration with the elastomer is taken into consideration to fit the actual engineering application. The effects of the directions, the amplitudes, and the numbers of waves to the nonlinear dynamic performance are ...
Jian Li, Shaoqi Yang, Xiaoming Li, Qing Li, Konstantin Avramov   +4 more
wiley   +1 more source

Research on the Load Characteristics of Aerostatic Spindle Considering Straightness Errors

Lubricants
As the core component of ultra-precision machine tools, the manufacturing errors of aerostatic spindles are inevitable due to the limitations of machining and assembly processes, and these errors significantly affect the spindle’s static and dynamic ...
Guoqing Zhang, Yu Guo, Guangzhou Wang, Wenbo Wang, Youhua Li, Hechun Yu, Suxiang Zhang   +6 more
doaj   +1 more source

STUDY ON THE AXIAL BEARING CAPACITY OF T AEROSTATIC BEARING

Jixie qiangdu, 2016
Even a small axial vibration or an axis deflection vibration of the aerostatic bearing of DFC tool can be quite significant for ultra-precision machining. It is of great importance to obtain the accurate axial bearing characteristic（ bearing capacity and
ZHAO Gong, WANG BaoRui, YANG Hong, CUI HaiLong   +3 more
doaj  

An Analytical Model for Aerostatic Thrust Bearings Based on the Average Pressure of the Area Surrounded by Orifice

Lubricants
Aerostatic thrust bearings are widely used in advanced equipment such as lithography machines due to their excellent lubrication performance. In this study, computational fluid dynamics (CFD) was employed for the analysis of errors in the calculation of ...
Jian Zheng, Jianwei Wu, Huan Liu, Jiyao Wang, Pengyue Zhao   +4 more
doaj   +1 more source

Modelling of Aerostatic Bearings with Micro-Hole Restriction

Machines
Aerostatic bearings incorporating micro-hole restrictors with diameters on the order of tens of microns demonstrate superior static and dynamic stiffness characteristics, while significantly reducing air consumption, and are increasingly adopted in ...
Dehong Huo, Amir Fard, Junliang Liu, Ning Gou, Kai Cheng   +4 more
doaj   +1 more source

Performance Investigation of the Micro-Hole High-Speed Aerostatic Thrust Bearing Based on the Finite Element Method

Machines
Micro-hole aerostatic bearings have emerged as critical components in ultra-precision machining systems, offering a superior load capacity, stiffness, and stability compared to traditional orifice-based designs.
Siyu Gao, Tianle Jiang, Zhuang Li, Hongbin Yang, Min Zhu, Youyun Shang, Laiyun Song, Lihua Lu, Qiang Gao, Hanqian Zhang   +9 more
doaj   +1 more source

Theoretical Study of the Dynamic Quality of an Aerostatic Thrust Bearing with a Microgroove and Simple Diaphragms

Applied Mechanics
This paper presents the results of a study of the dynamic performance of an aerostatic thrust bearing with a microgroove and simple diaphragms. The objective of this study was to determine the influence of the lubrication gap thickness and the volume of ...
Vladimir Kodnyanko
doaj   +1 more source

Aerostatic Thrust Bearing Capable of Operating in Bearing Clearance of Submicrometer. Static Characteristics.

Journal of the Japan Society for Precision Engineering, 1992
This paper proposes a new type of aerostatic thrust bearing in order to achieve the maximum stiffness, about ten times as large as that of a conventional bearing. The proposed aerostatic bearing can operate in a bearing clearance of less than 1μm. In this bearing, the porous restrictor with 1-3 mm diameter is employed instead of a conventional feeding ...
Shigeka YOSHIMOTO, Yoshiro ANNO, Takayuki NUKUSHINA   +2 more
openaire   +3 more sources