Results 21 to 30 of about 480 (164)

A review of hydrostatic bearing system: Researches and applications

Advances in Mechanical Engineering, 2017
Hydrostatic bearing is a key part that provides precision and long life to machine tools. It is one of the embodiments of tribology, mechanics, optimization method, and structural design in engineering practice.
Zhifeng Liu, Yumo Wang, Ligang Cai, Yongsheng Zhao, Qiang Cheng, Xiangmin Dong   +5 more
doaj   +1 more source

Theoretical Disquisition on the Static and Dynamic Characteristics of an Adaptive Stepped Hydrostatic Thrust Bearing with a Displacement Compensator

Mathematics, 2021
Stepped hydrostatic thrust bearings used in metal-cutting machines are characterized by high load capacity and damping, which ensure the stable operation of structures. However, in comparison with throttle thrust bearings, they have a high compliance. It
Vladimir Kodnyanko, Andrey Kurzakov, Olga Grigorieva, Maxim Brungardt, Svetlana Belyakova, Ludmila Gogol, Alexey Surovtsev, Lilia Strok   +7 more
doaj   +1 more source

Asymmetric Supply Type Hydrostatic Journal Gas Bearings to Support Large Load Rotors

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
Rotating machinerys have problems at bearings to support a rotor such as seismic ACROSS transmitters. The ACROSS ( Accurately Controlled Routinely Operated Signal System ) is a new technical method to detect subtle changes in the physical state of Earth ...
Tomohiko ISE, Hiroshi MIYATAKE, Toshihiko ASAMI   +2 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

Theoretical Research on Flow and Heat Transfer Characteristics of Hydrostatic Oil Film in Flat Microfluidic Boundary Layer

Energies, 2022
The hydrostatic bearing is the core component of ultra-precision computer numerical control (CNC) machine tools. Because the temperature rise in the oil film of hydrostatic bearings seriously affects the working accuracy of the bearings, it is important ...
Liansheng Liu, Huiru Qu, Runze Duan, Teng Liu, Chentao Li, Enyu Wang, Lujia Liu   +6 more
doaj   +1 more source

Effects of oil recess structural parameters on comprehensive tribological properties in multi-pad hydrostatic thrust bearing for CNC vertical processing equipment based on low power consumption

Energy Reports, 2021
Hydrostatic thrust bearings have been applied in high speed and heavy load machine tools because they provide superior characteristics such as higher positional accuracy, greater stability, and lower friction.
Xiaodong Yu, Ruiming Zhang, Defan Zhou, Yan Zhao, Minmin Chen, Zelin Han, Shihao Li, Hui Jiang   +7 more
doaj   +1 more source

Influence of Bernoulli′s Speed-reduced Oil Cavities on the Friction Characteristics of Hydrostatic Bearings

Journal of Harbin University of Science and Technology
In order to solve the problem of insufficient bearing capacity of hydrostatic thrust bearings at high speed, a pendulum shaped oil lifting structure is added in the double rectangular oil cavity and this paper takes the slope-shaped and the ordinary ...
YANG Xiaodong, WANG Bin, LIU Weifeng, LIU Hongbo   +3 more
doaj   +1 more source

Hydrostatic Asymmetric Journal Gas Barings for Seismic ACROSS Transmitters

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
The ACROSS (Accurately Controlled Routinely Operated Signal System) is used to detect subtle changes in the physical state of Earth's structure. The signal is sinusoidal elastic waves generated by the rotation of a rotor with eccentric mass set in ...
Tomohiko ISE, Takao TORII, Nobuyoshi MORITA, Shinichi TOGO, Makoto OKANO   +4 more
doaj   +1 more source

Modeling and Analysis of the Eccentric-Load Resistance of Single Rectangular Hydrostatic Oil Pad Units

Lubricants
Hydrostatic bearings are extensively utilized in precision and ultra-precision machinery. Owing to the small oil film clearance of such bearings, they are prone to tilting under eccentric loads, which may ultimately lead to bearing failure.
Mengyang Li, Ye Ding, Jie Wu
doaj   +1 more source

Influence of Ball Bearing Size on the Flight and Damage Characteristics of Blast-Driven Ball Bearings

Applied Sciences, 2022
This paper presents insights into the influence of ball size on the flight characteristics and damage of a ball bearing embedded in a rear detonated cylindrical charge. It includes results from a post-test damage analysis of ball bearings from previously
Genevieve S. Langdon, Ruixuan Qi, Trevor J. Cloete, Steeve Chung Kim Yuen   +3 more
doaj   +1 more source