An Investigation into the Optimal Dimple Geometry in a Single-Dimple Sliding Contact
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Abstract
This study analyzes the influence of nine distinct texture geometries on a convergent oil
film gap using a simulation model. The geometrical dimensions of the textures are characterized
by the texture area density, Stex.,A and the ratio of the textured-to-untextured area (Atex./A0). The
results show that different texture geometries optimize the tribological performance depending on
the value of Stex.,A. Rectangular textures with variable widths (85% of the texture length atex.) significantly
enhance lifting and the drag force across a broad range of Stex.,A. Furthermore, rectangular
textures with a constant width (85% of the global width b0) show the best improvement within
this study. The investigation also reveals that a small texture pitch angle, αtex, further enhances
tribological performance.
film gap using a simulation model. The geometrical dimensions of the textures are characterized
by the texture area density, Stex.,A and the ratio of the textured-to-untextured area (Atex./A0). The
results show that different texture geometries optimize the tribological performance depending on
the value of Stex.,A. Rectangular textures with variable widths (85% of the texture length atex.) significantly
enhance lifting and the drag force across a broad range of Stex.,A. Furthermore, rectangular
textures with a constant width (85% of the global width b0) show the best improvement within
this study. The investigation also reveals that a small texture pitch angle, αtex, further enhances
tribological performance.
Details
Originalsprache | Englisch |
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Aufsatznummer | 622 |
Seitenumfang | 16 |
Fachzeitschrift | Machines : open access journal |
Jahrgang | 12.2024 |
Ausgabenummer | 9 |
DOIs | |
Status | Veröffentlicht - 5 Sept. 2024 |