Results 61 to 70 of about 661 (213)

Performance Analysis of Thermal and Surface Roughness Effect of Slider Bearings with Unsteady Fluid Film Lubricant Using Finite Element Method

open access: yesJournal of Applied Mathematics, Volume 2024, Issue 1, 2024.
The streamline upwind Petrov‐Galerkin (SUPG) finite element method was used in this study to investigate the thermal and surface roughness effects on an inclined slider bearing with an unsteady fluid film. One‐dimensional transverse and longitudinal surface roughness models were considered with the supposition that roughness is stochastic and has a ...
Girma Desu Tessema   +3 more
wiley   +1 more source

Design and Manufacture of an Aerostatic Spindle Bearing System with Carbon Fiber-Epoxy Composites

open access: yes, 2000
Recently, aerostatic bearing systems are widely used in various fields in which high precision and high speed are required because of their advantages such as low friction and low heat generation.
Dai Gil Lee, Jin Kyung Choi
core   +2 more sources

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

open access: yesInternational 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   +3 more
wiley   +1 more source

The Direct-Coupling Method for Analyzing the Performance of Aerostatic Bearings Considering the Fluid–Structure Interaction Effect

open access: yesLubricants, 2023
In the interest of analyzing the effect of the structural deformation root caused by gas pressure on the static features of aerostatic bearings, a fluid–structure interaction (FSI) model based on orifice-type aerostatic bearings is proposed that can ...
Yangong Wu   +4 more
doaj   +1 more source

Development of an aerostatic bearing system for roll-to-roll printed electronics [PDF]

open access: yes, 2018
Roll-to-roll printed electronics is proved to be an effective way to fabricate electrical devices on various substrates. High precision overlay alignment plays a key role to create multi-layer electrical devices.
Chen, Wenjie   +9 more
core   +1 more source

Instability studies of an 'O'-ring flexibly supported, gas bearing, mounted, cool air unit. [PDF]

open access: yes, 1990
A Cool Air unit (C. A. U. ) is powered by air bled from the engine and supplies cool air to the avionics and cockpit of the aircraft. Essentially a small turbo machine, the rotor is mounted upon two plain (gas) air bearings, which are flexibly ...
McLuckie, I. R. W.
core  

Finite Element Analysis and Calculation of Load Capacity on Aerostatic Thrust Bearing

open access: yes, 2011
For the design and application of ultra-high speed aerostatic spindle, it is often difficult to determine the load capacity of bearing gas film because of nonlinear problem, especially when the gas film is very thin.
P.C. Shu, H. Wu, S.H. Xiao
core   +1 more source

A novel technique to compute static and dynamic performance characteristics of aerostatic thrust bearing

open access: yes, 2018
Purpose This study aims to analyze the dynamic performance of aerostatic thrust bearing for different geometries of recess. Different geometries of recess of equal recess area, i.e.
Saurabh Kumar Yadav   +3 more
core   +1 more source

Research on the effect of micron-groove orifices on the static characteristics of aerostatic journal bearings under high gas supply pressures based on the SST - turbulence model

open access: yesAdvances in Mechanical Engineering, 2022
To improve the static characteristics of orifice-compensated aerostatic journal bearings (OCAJBs) under high gas supply pressures, governing equations considering inertial forces are established based on the shear stress transport (SST) k - ω turbulence ...
Li Shusen, Cui Wei
doaj   +1 more source

CFD Analysis of Aerostatic Bearing for Cryogenic Turbo-Expander [PDF]

open access: yes, 2016
Expansion turbine plays the major role in any cryogenic plants like helium and hydrogen liquefier,air separation plants and low temperature refrigerator.These turbines run at speed around 50,000 to 5,00,000 rpm.At such a high speed no bearing is feasible
Behera, Ranjit
core  

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