TY - JOUR

T1 - An Investigation into the Optimal Dimple Geometry in a Single-Dimple Sliding Contact

AU - Scharf, Raphael

AU - Pusterhofer, Michael

AU - Gussmagg, Jakob

AU - Grün, Florian

PY - 2024/9/5

Y1 - 2024/9/5

N2 - This study analyzes the influence of nine distinct texture geometries on a convergent oilfilm gap using a simulation model. The geometrical dimensions of the textures are characterizedby the texture area density, Stex.,A and the ratio of the textured-to-untextured area (Atex./A0). Theresults show that different texture geometries optimize the tribological performance depending onthe value of Stex.,A. Rectangular textures with variable widths (85% of the texture length atex.) significantlyenhance lifting and the drag force across a broad range of Stex.,A. Furthermore, rectangulartextures with a constant width (85% of the global width b0) show the best improvement withinthis study. The investigation also reveals that a small texture pitch angle, αtex, further enhancestribological performance.

AB - This study analyzes the influence of nine distinct texture geometries on a convergent oilfilm gap using a simulation model. The geometrical dimensions of the textures are characterizedby the texture area density, Stex.,A and the ratio of the textured-to-untextured area (Atex./A0). Theresults show that different texture geometries optimize the tribological performance depending onthe value of Stex.,A. Rectangular textures with variable widths (85% of the texture length atex.) significantlyenhance lifting and the drag force across a broad range of Stex.,A. Furthermore, rectangulartextures with a constant width (85% of the global width b0) show the best improvement withinthis study. The investigation also reveals that a small texture pitch angle, αtex, further enhancestribological performance.

U2 - 10.3390/machines12090622

DO - 10.3390/machines12090622

M3 - Article

VL - 12.2024

JO - Machines : open access journal

JF - Machines : open access journal

SN - 2075-1702

IS - 9

M1 - 622

ER -