An Investigation into the Optimal Dimple Geometry in a Single-Dimple Sliding Contact
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in: Machines : open access journal , Jahrgang 12.2024, Nr. 9, 622, 05.09.2024.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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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 -