Thermoelastohydrodynamic analysis of lubrication of worm gears.

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Abstract

The full thermal elastohydrodynamic analysis of lubrication of worm gears is presented. Four types of worm gears were treated: Archimedian, involute, convolute and the worm ground by a conical grinding wheel. A numerical solution of the coupled Reynolds, elasticity, energy and Laplace's equations for the oil film shape, pressure and temperature distributions in the oil film, and temperature distribution in the worm and gear solid was obtained. The calculations were carried out in cylindrical coordinates and the finite difference method was applied. The viscosity variation with respect to pressure and temperature and the density variation with respect to pressure were included. The real worm gear geometry was involved to determine the separation of teeth surfaces. The effects of type of worm, addendum modifications, difference of hob and worm diameters, minimum oil film thickness, pitch velocity and oil viscosity on elastohydrodynamic lubrication performance characteristics is dicussed. By regression analysis based on the obtained results, equations were developed to calculate the load carrying capacity, maximum temperature and power loss. (A)

Original languageEnglish
Pages (from-to)1147-1152
Number of pages6
JournalIN: PROC. JSLE INT. TRIBOLOGY CONF., (TOKYO, JAPAN: JUL. 8-10, 1985)
VolumeIII, Tokyo, Japan, Japan Soc. Lubr. Engrs., 1985, Session 7E, Paper 7E-3
Publication statusPublished - Jan 1 1985

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Simon, V. (1985). Thermoelastohydrodynamic analysis of lubrication of worm gears. IN: PROC. JSLE INT. TRIBOLOGY CONF., (TOKYO, JAPAN: JUL. 8-10, 1985), III, Tokyo, Japan, Japan Soc. Lubr. Engrs., 1985, Session 7E, Paper 7E-3, 1147-1152.