非高斯随机粗糙表面的数字模拟

Numerical Simulation of Non-Gaussian Random Roughness Surface

针对摩擦学和表面工程领域的研究需求,介绍一种模拟生成非高斯粗糙表面的有效方法。该技术不仅可以生成具有给定标准差、偏斜、峰度和自相关函数的随机粗糙表面,而且还能够控制粗糙表面的相关长度。数字模拟说明了该设计方法的正确性。

Aiming at the requirements of field on tribology and surface engineering, a computer simulation method to generate the non-Gaussian random surface was proposed. This method could generate non-Gaussian random roughness surface with given standard deviation, skewness, kurtosis and auto-correlation lengths. The simulation results and conclusions were proposed for explaining the available of the method.