Gas-Lubricated Porous Bearings --- Short Journal Bearings, Steady-State Solution.

Abstract

The governing equations for a short porous bearing are derived by adopting Ocvirk's approximation to the general equations for a finite bearing, which are given in a previous paper. Crank-Nicolson's numerical method and the analytical-numerical technique, which consists of Green function approximation and the local smoothing by integration for a Fourier series, developed in another paper are employed to solve the modified Reynolds equation for a wide range of compressibility number. The solution for a solid-wall bearing is obtained as a special case of a porous bearing. Comparison between two thicknesses of porous layer is included.

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1975
Accession Number
ADA021525

Entities

People

  • Erh-rong Wu
  • Vittorio Castelli

Organizations

  • Columbia University

Tags

DTIC Thesaurus Topics

  • Bearings
  • Compressive Properties
  • Equations
  • Fourier Series
  • Journal Bearings
  • Mathematics
  • Physical Properties
  • Steady State
  • Thickness

Fields of Study

  • Mathematics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Dynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).