Results 1 to 10 of about 6,262 (261)

Analytical study of the spherical hydrostatic bearing dynamics through a unique technique [PDF]

Scientific Reports, 2023
Because of their self-alignment property and design simplicity, the spherical hydrostatic bearings have the advantage over the other bearing configurations. Their static and dynamic performances have been intensively studied.
Ahmad Waguih Elescandarany
doaj   +2 more sources

Influence of Design Parameters of Membrane-Type Flow Controller on Bearing Characteristics of Hydrostatic Guideways [PDF]

Micromachines
The hydrostatic guideway has been widely used in ultra-precision machine tools. The flow stability of the hydrostatic guideway has a significant impact on its bearing characteristics, and the flow controller is critical to safeguard the flow stability of
Yi Chen, Xiaoyu Xu, Ziqi Lin, Maoyuan Li, Guo Bi, Zhenzhong Wang   +5 more
doaj   +2 more sources

Evaluation and correction methods for geometric errors of hydrostatic thrust bearings [PDF]

Scientific Reports
The value and direction angle of the perpendicularity error of the thrust surface and bearing bush in hydrostatic thrust bearings directly affect the motion accuracy. In this paper, a rapid onsite measurement method and evaluation model for the value and
Zhiwei Wang, Bingqing Yang, Cong Xu, Penghao Fu, Yanhao Jia, Aiqin Sun, Lijun Zhang, Liang Yuan   +7 more
doaj   +2 more sources

A review of the design and optimization of large-scale hydrostatic bearing systems

Engineering Science and Technology, an International Journal, 2021
In the last decades, the demand for hydrostatic bearings application has been rising due to the possibilities and advantages they offer. The advancements in hydrostatic lubrication understanding and computer technology improvement opened new ways for ...
Michal Michalec, Petr Svoboda, Ivan Křupka, Martin Hartl   +3 more
doaj   +1 more source

Reliability of a Hydrostatic Bearing [PDF]

Journal of Tribology, 2013
This paper presents a methodology for evaluating the failure probability of fluid bearings, which are sensitive components for the design of machine rotors, mechatronic systems, and high precision metrology. The static and dynamic behavior of a fluid bearing depends on several parameters, such as external load, bearing dimensions, supply pressure ...
Charki, Abderafi, Diop, Khadim, Champmartin, Stéphane, Ambari, Abdelhak   +3 more
openaire   +3 more sources

Thrust-Bearing Layout Design of a Large-Sized Hydrostatic Rotary Table to Withstand Eccentric Loads for Horizontal Boring Machine Applications

Lubricants, 2022
There is an increasing demand for large-sized hydrostatic rotary tables due to the industrial need for the precision machining of large workpieces for wind generation, aerospace, shipbuilding, and national defense applications.
Hua-Chih Huang, Shen-Hen Yang
doaj   +1 more source

Viscous Oil Film Thermal Modeling of Hydrostatic Bearings With a Rectangular Microgroove Surface

Frontiers in Energy Research, 2022
The thermal effect of the viscous oil film of hydrostatic bearings is the key factor causing bearing errors, and the hydrostatic bearing working surface with microgroove structures can potentially inhibit the thermal effect and effectively ensure the ...
Teng Liu, Teng Liu, Chentao Li, Runze Duan, Huiru Qu, Faze Chen, Zhenlin Zhou, Jianjun Zhang, Zhanqun Shi   +8 more
doaj   +1 more source

CFD-Based Investigation on Effects of Orifice Length–Diameter Ratio for the Design of Hydrostatic Thrust Bearings

Applied Sciences, 2021
Orifice-restricted hydrostatic thrust bearings are broadly employed in ultra-precision machine tools, aerospace industries, and so forth. The orifice length–diameter ratio (OLDR) is one of the significant geometrical parameters of the orifice-restricted ...
Siyu Gao, Youyun Shang, Qiang Gao, Lihua Lu, Min Zhu, Yan Sun, Weifeng Yu   +6 more
doaj   +1 more source

Investigation of the Static Performance of Hydrostatic Thrust Bearings Considering Non-Gaussian Surface Topography

Lubricants, 2023
The dynamic and static characteristics of hydrostatic thrust bearings are significantly affected by the bearing surface topography. Previous studies on hydrostatic thrust bearings have focused on Gaussian distribution models of bearing surface topography.
Huaiqing Lu, Zhuxin Tian
doaj   +1 more source

Design of a Hydrostatic Spindle and Its Simulation Analysis with the Application to a High Precision Internal Grinding Machine

Machines, 2022
Hydrostatic thrust bearings are the core part of the hydrostatic spindle, which is widely used in high precision grinding machines. In this paper, the viscosity-temperature (v-t) characteristics of hydrostatic oil are systematically investigated, which ...
Youyun Shang, Kai Cheng, Hui Ding, Shijin Chen   +3 more
doaj   +1 more source