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RESEARCH PAPERS

Use of the FFT to Determine the Subsurface Stresses Locally in Multilayered Elastic Solids Caused by a TEHL Loading

[+] Author and Article Information
I. Riche

 Laboratoire de Mécanique des Solides, 4 avenue de Varsovie, 16022 Angoulême Cedex, France

B. Villechaise

 Laboratoire de Mécanique des Solides, 4 avenue de Varsovie, 16022 Angoulême Cedex, Francebvillechaise@iutang.univ-poitiers.fr

J. Tribol 128(1), 59-66 (Feb 09, 2005) (8 pages) doi:10.1115/1.1924575 History: Received September 23, 2004; Revised February 09, 2005

This paper presents a numerical two-dimensional model to study a rough thermal elastohydrodyanmic lubrication sliding contact locally and to calculate the stresses in multilayered solids. The model deterministically calculates the pressure and the surface temperature in solving simultaneously the equations that govern the lubrication and the thermoelasticity problem, respectively. The Reynolds equation and a parabolic profile for the temperature makes it possible to treat the lubrication part of the problem. The heat equation and the thermoelasticity equations in the solids are treated using a method based on the integral Fourier transform and solved with a fast Fourier transform algorithm.

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Copyright © 2006 by American Society of Mechanical Engineers
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Figures

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Figure 1

Boundary conditions for the rough TEHL contact locally studied

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Figure 4

Variation of the film thickness on the rough multilayered surface

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Figure 5

Variation of pressure on the rough multilayered surface

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Figure 6

Variation of temperature on the rough multilayered surface

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Figure 7

Von Mises’ stress distribution into the multilayered solids

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Figure 2

Stress periodicity problem due to the discrete numerical Fourier transform

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Figure 3

Temperature periodicity problem due to discrete numerical Fourier transform

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