Abstract
Micro-scale textures may be engineered into surfaces for lubrication performance improvement. It is expected that a carefully chosen texture helps retain lubricant and enhances the hydrodynamic effect at the interface. The concept of model-based virtual texturing enables textured surfaces to be generated and “tested” through numerical simulations. This paper reports virtual texturing and simulation of a group of textured surfaces in a lubricated concentrated contact. The focus of the study is on the selection of texture distribution patterns based on their lubrication performance. Patterns of fishbone, sinusoidal, triangular, and honeycomb distributions have been investigated. The effects of texture direction, orientation angle, feature continuity, and aspect ratio are also studied. The results indicate that, for the given material and geometry system under the given conditions in the present work, the textures generating the strongest hydrodynamic lifting are short grooves with a small aspect ratio and sinusoidal waves of a small wavelength/amplitude ratio propagating in the motion direction.
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The authors would like to thank Nissan Motors for research support and permission to publish the results.
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Ren, N., Nanbu, T., Yasuda, Y. et al. Micro Textures in Concentrated-Conformal-Contact Lubrication: Effect of Distribution Patterns. Tribol Lett 28, 275–285 (2007). https://doi.org/10.1007/s11249-007-9271-4
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DOI: https://doi.org/10.1007/s11249-007-9271-4