Accession Number:

ADA021525

Title:

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

Descriptive Note:

Technical rept.,

Corporate Author:

COLUMBIA UNIV NEW YORK LUBRICATION RESEARCH LAB

Personal Author(s):

• Wu,Erh-Rong
• Castelli,Vittorio

Report Date:

1975-12-01

Pagination or Media Count:

50.0

Abstract:

The governing equations for a short porous bearing are derived by adopting Ocvirks approximation to the general equations for a finite bearing, which are given in a previous paper. Crank-Nicolsons 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.

Descriptors:

• *GAS BEARINGS
• *INCOMPRESSIBLE FLOW
• *LUBRICATION
• NUMERICAL ANALYSIS
• PARTIAL DIFFERENTIAL EQUATIONS
• GREENS FUNCTIONS
• REYNOLDS NUMBER
• FOURIER SERIES
• JOURNAL BEARINGS

Subject Categories:

• Lubricants and Hydraulic Fluids
• Machinery and Tools

Distribution Statement:

APPROVED FOR PUBLIC RELEASE