Accession Number : AD0677933

Title :   A GENERALIZED NARROW-GROOVE THEORY FOR THE GAS-LUBRICATED HERRINGBONE THRUST BEARING.

Descriptive Note : Interim rept.,

Corporate Author : FRANKLIN INST RESEARCH LABS PHILADELPHIA PA

Personal Author(s) : Elrod,H. G. , Jr

Report Date : OCT 1968

Pagination or Media Count : 68

Abstract : A narrow-groove theory for gas on liquid-lubricated herringbone thrust bearings is developed by means of two matched asymptotic expansions. The first expansion, for the film interior, yields a generalized Whipple equation for the average pressure level. The second expansion, for the film edges, yields a generalized Muijdermann-Body pressure correction. Arbitrary transverse groove shape is accommodated by the analysis. The prognosis for development along present lines of a single partial differential equation to include first-order groove-width effects, both in the film interior and at its edges, is very good. (Author)

Descriptors :   (*THRUST BEARINGS, *GAS BEARINGS), THEORY, ASYMPTOTIC SERIES, FILMS, PARTIAL DIFFERENTIAL EQUATIONS, LUBRICATION, GASES, PRESSURE

Subject Categories : Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE