Directional multiscale analysis and optimization for surface textures

Pawel Podsiadlo, Gwidon Stachowiak

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Surface texturing has a potential to become a cost effective and easy way to improve the tribological performance of lubricated interfacing surfaces. Effects of surface textures on the performance of machine elements as frictional pairs have been investigated over the past two decades. However, despite this research only a limited number of analytical solutions have been proposed as the majority of studies have been experimental and results obtained have not been optimal. This is because the commonly used surface characterization methods are not able to quantify surface textures over a range of scales at different directions and the optimization methods used work only for relatively simple textures and specific constraints imposed on pressure, film thickness, sliding velocity and lubricant rheology. Previous studies have addressed these issues, to some degree, by developing directional fractal signature methods and unified computational approach for texture optimization. In this article, recent advancements in the development of fractal methods and optimization of surface textures are presented. © 2012 Springer Science+Business Media New York.
Original languageEnglish
Pages (from-to)179-191
JournalTribology Letters
Issue number1
Publication statusPublished - 2013


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