Simulation of stratified surface topographies

Abstract In this paper various simulation methods of isotropic and anisotropic random surfaces of Gaussian ordinate distribution with Fast Fourier Transform are compared and the best of them are recommended. The method of numerical generation of arbitrarily oriented three-dimensional rough surfaces is presented. The procedure of digital simulation of two-process surface is introduced. An idea of the proposed method (and its possible modifications) is imposition of random surface of Gaussian ordinate distribution (second process) on the base surface (first process). The examples of using this method for the simulation of plateau honed cylinder surface, cylinder and piston skirt surfaces after “zero-wear” processes are given. In each case the matching criteria of real and simulated surface topographies are presented.

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