Discharge coefficients in aerostatic bearings with inherent orifice-type restrictors

S. H. Chang, C. W. Chan, Yeau-Ren Jeng

研究成果: Article

12 引文 (Scopus)

摘要

In aerostatic bearing analysis, determining film pressure by solving the Reynolds equation in a numerical model is more effective than conducting bearing experiments or performing computational fluid dynamics (CFD) simulations. However, the discharge coefficient of an orifice-type restrictor is generally a given number that dominates model accuracy. This study investigated the influence of geometry and flow parameters on this discharge coefficient. The results indicate that this discharge coefficient is sensitive to the orifice diameter and film thickness and that the effects of the supply pressure, bearing radius, supply orifice length, supply passage diameter, conicity depth, and conicity angle can be disregarded. This study also built a surrogate model of this discharge coefficient based on the orifice diameter and film thickness by using artificial neural networks (ANNs).

原文English
文章編號011705
期刊Journal of Tribology
137
發行號1
DOIs
出版狀態Published - 2015 一月 1

指紋

Bearings (structural)
aerostatics
discharge coefficient
orifices
Orifices
Film thickness
film thickness
Reynolds equation
computational fluid dynamics
Numerical models
Computational fluid dynamics
Neural networks
conduction
radii
Geometry
Computer simulation
geometry
simulation
Experiments

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

引用此文

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Discharge coefficients in aerostatic bearings with inherent orifice-type restrictors. / Chang, S. H.; Chan, C. W.; Jeng, Yeau-Ren.

於: Journal of Tribology, 卷 137, 編號 1, 011705, 01.01.2015.

研究成果: Article

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