表面形貌的逾渗特性研究

On the basis of mechanical rheological model，the article explore the representation effect of percolation on surface topography and define surface percolation characteristic parameters, besides compile the corresponding algorithm based on Matlab software according to the parameters definition. By analyzing the percolation characteristic of the simulation gaussian random surface and real surface data, reveal the surface percolation rule. And analyze micro-texture surface shape、depth、area ratio's effect on surface percolation characteristic. The result shown that no matter simulation surface or real surface, when surface height vary from valley to summit, the percolation phenomenon come up. And simulation comes at void area closed in percolation theory value 0.592746 but real original surface at 0.5. for the same surface it have different percolation characteristic when computer in different side. And the differentiation of texture surface bigger than the original one.Texture type has influlence on surface percolaition characteristics.