On the Numerical Modeling of High-Speed Hydrodynamic Gas Bearings-Reference-Cited by-同舟云学术

On the Numerical Modeling of High-Speed Hydrodynamic Gas Bearings

Published:1999-03-08 Issue:1 Volume:122 Page:124-130
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Faria Marco Tulio C.¹,Andre´s Luis San²

Affiliation:

1. Federal University of Minas Gerais, Department of Mechanical Engineering, Belo Horizonte, MG, Brazil 31270-901

2. Texas A&M University, Department of Mechanical Engineering, College Station, Texas 77843-3123

Abstract

A numerical study of high-speed hydrodynamic gas bearing performance is presented using both finite element and finite difference methods. Efficient numerical procedures are developed to analyze diffusive-convective thin film gas flows in some simple geometries. A novel direct finite element formulation employing a new class of shape functions is specially devised to solve the Reynolds equation for compressible fluids. The formulation is as computationally efficient as the classical upwind finite element schemes without introducing artificial diffusion into the solution. Bearing load-capacity, static stiffness coefficients and frequency-dependent force coefficients are calculated for gas-lubricated plane and Rayleigh step slider bearings. [S0742-4787(00)01701-X]

Publisher

ASME International

Subject

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

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/122/1/124/5001177/124_1.pdf

Reference24 articles.

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2. Beskok, A., Karniadakis, G. E., and Trimmer, W., 1996, “Rarefaction and Compressibility Effects in Gas Microflows,” ASME J. Fluids Eng., 118, pp. 448–456.

3. Burgdorfer, A. , 1959, “The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings,” ASME J. Basic Eng., 81, pp. 94–100.

4. Hsia, Y. T., and Domoto, G. A., 1983, “An Experimental Investigation of Molecular Rarefaction Effects in Gas Lubricated Bearings at Ultra-low Clearances,” ASME J. Lubr. Technol., 105, pp. 120–130.

5. Mitsuya, Y. , 1993, “Modified Reynolds Equation for Ultra-thin Film Gas Lubrication Using 1.5-Order Slip-Flow Model and Considering Surface Accommodation Coefficient,” ASME J. Tribol., 115, pp. 289–294.

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