On How to Determine Surface Roughness Power Spectra

IF 2.9 3区 工程技术 Q2 ENGINEERING, CHEMICAL Tribology Letters Pub Date : 2024-12-27 DOI:10.1007/s11249-024-01933-6
N. Rodriguez, L. Gontard, C. Ma, R. Xu, B. N. J. Persson
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Abstract

Analytical contact mechanics theories depend on surface roughness through the surface roughness power spectrum. In the present study, we evaluated the usability of various experimental methods for studying surface roughness. Our findings indicated that height data obtained from optical methods often lack accuracy and should not be utilized for calculating surface roughness power spectra. Conversely, engineering stylus instruments and atomic force microscopy (AFM) typically yield reliable results that are consistent across the overlapping roughness length scale region. For surfaces with isotropic roughness, the two-dimensional (2D) power spectrum can be derived from the one-dimensional (1D) power spectrum using several approaches, which we explored in this paper.

Graphical Abstract

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如何确定表面粗糙度功率谱
解析接触力学理论通过表面粗糙度功率谱依赖于表面粗糙度。在本研究中,我们评估了研究表面粗糙度的各种实验方法的可用性。我们的研究结果表明,光学方法获得的高度数据往往缺乏精度,不应用于计算表面粗糙度功率谱。相反,工程触笔仪器和原子力显微镜(AFM)通常会产生可靠的结果,这些结果在重叠的粗糙度长度尺度区域内是一致的。对于具有各向同性粗糙度的表面,二维(2D)功率谱可以使用几种方法从一维(1D)功率谱中导出,我们在本文中探索了这些方法。图形抽象
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来源期刊
Tribology Letters
Tribology Letters 工程技术-工程:化工
CiteScore
5.30
自引率
9.40%
发文量
116
审稿时长
2.5 months
期刊介绍: Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.
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