AN ANALYTICAL MODEL FOR PRESSURE AND THERMAL DEFORMATIONS INDUCED IN AN ELASTIC PARALLEL SURFACE SLIDER

Andrei MINCULESCU¹

andrei.minculescu2@honeywell-garrett.com

Traian CICONE²

Mircea D. PASCOVICI²

¹ Honeywell-Garrett, Romania

² Department of Machine Elements and Tribology, "Politehnica" University of Bucharest, Romania

Abstract. This paper is analyzes theoretically an elastic slider, with nominally flat and parallel surfaces. The proposed 1-D TEHD model allows calculating pad deformations produced by both pressure distribution and transversal temperature gradient. Isoviscous Reynolds equation for an infinitely wide parabolic gap is solved for pressure distribution. Thermo-elastic deformations are calculated for a temperature gradient across the pad. The mean film temperature is obtained from a bulk energy balance. The results are compared with similar results, obtained by using a non-isothermal 1D-TEHD previously published by the same authors.

Keywords: lubrication, Reynolds equation, TEHD analysis, elasticity, thermoelasticity