ASYMPTOTIC ANALYSIS OF ULTRA-THIN GAS SQUEEZE FILM LUBRICATION FOR INFINITELY LARGE SQUEEZE NUMBER (EXTENSION OF PANS THEORY TO THE MOLECULAR GAS FILM LUBRICATION EQUATION)

被引：9

作者：

MATSUDA, R ^{[1
]}

FUKUI, S ^{[1
]}

机构：

[1] NIPPON TELEGRAPH & TEL PUBL CORP, INTERDISCIPLINARY RES LABS, OPTOMECHATR LAB, MUSASHINO, TOKYO 180, JAPAN

来源：

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME | 1995年 / 117卷 / 01期

关键词：

D O I：

10.1115/1.2830616

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Ultra-thin gas squeeze film characteristics are analyzed by extending Pan's asymptotic theory for infinite squeeze number to the molecular gas film lubrication equation which was derived from the linearized Boltzmann equation and is valid for arbitrary Knudsen numbers. The generalized asymptotic method is shown to solve the boundary value equation which contains the flow rate coefficient as a function of the product of pressure P and film thickness H. Numerical results are obtained for a circular squeeze film. The PH ratio and the load carrying capacity ratio to those of continuum flow both decrease when the average film thickness is less than several microns because of molecular gas effects.

引用

页码：9 / 15

页数：7

共 12 条

[1]

BURGDORFER A, 1959, T ASME D, V81, P94

[2] FLOW OF A RAREFIED GAS BETWEEN 2 PARALLEL PLATES [J].