Based on the NCGM Method of the Gaussian 3-d Rough Surface Numerical Simulation

摘要

This paper uses the time series model and linear matrix transformation method to generate three dimensional rough surface numerically. Assume that the autocorrelation function of the surface is exponential type. In order to reduce the memory requirements and for easy convergence, the non-linear Conjugate Gradient (NCGM) method is used to solve the non-linear systems. To illustrate the numerical procedure, a rough surface having a Gaussian height distribution and an exponential autocorrelation function (ACF) is generated.