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我们提出了一种生成表面形貌的简单方法。与文献中可用的方法相比，所提出的方法的主要优点是可以独立地指定功率谱和高度概率分布。在本文[1]中，我们提出了该方法，并通过生成具有三种不同高度概率分布的表面拓扑图来展示其多功能性：威布尔分布、双峰分布和包含代表磨损表面的德尔塔函数的分布。在本文[2]中，通过使用[3]中描述的边界元方法（BEM）和[4]中描述的弹塑性近似，使用该方法来研究具有非高斯高度分布的表面的刚度。

In this MATLAB App we present a simple method to generate surface topography. The main advantage of the presented method as compared with those available in the literature is that the power spectrum and the height probability distribution can be specified independently. In this article [1] we present the method and show its versatility by generating surface topographies with three different height probability distributions: the Weibull distribution, a bimodal distribution and a distribution containing a delta function that represents worn surfaces. And in this article [2] the method is used to investigate the stiffness of surfaces with non-Gaussian height distributions by means of using Boundary Element Method (BEM) described in [3], with the elastoplastic approximation that is described in [4].

[1] Pérez-Ràfols, F. & Almqvist, A. (2019). Generating randomly rough surfaces with given height probability distribution and power spectrum, Tribology International, 131, 591–604. /10.1016/j.triboint.2018.11.020

[2] Pérez-Ràfols, F., & Almqvist, A. (2021). On the stiffness of surfaces with non-Gaussian height distribution. Scientific Reports, 11. /10.1038/s41598-021-81259-8

[3] Almqvist, A., Sahlin, F., Larsson, R., & Glavatskikh, S. (2007). On the dry elasto-plastic contact of nominally flat surfaces. Tribology International, 40(4), 574–579. /10.1016/j.triboint.2005.11.008

[4] Sahlin, F., Larsson, R., Almqvist, A., Lugt, P., & Marklund, P. (2010). A mixed lubrication model incorporating measured surface topography: Part 1: theory of flow factors. Proceedings of the Institution of Mechanical Engineers. Part J, Journal of Engineering Tribology, 224(4), 335–351. /10.1243/13506501JET658