Surface roughness simulation in mechanical engineering

Surface roughness has always been an essential part in the quality control of mechanical products. To investigate the impacts of roughness on various surfaces, a large number of surface specimens with different roughness parameters need to be produced by manufacturing. Whereas a more economic and reasonable substitution is using the computer simulation technique. In this study, we extend the time series model theory to a spatial random process. The principle and realization process of the generation of a rough surface with predefined property are presented in detail. The simulation results are given and show good agreements with expectation.