Influence of the Bowtie Shaped Dimples on the Performance of Sliding Surfaces under Hydrodynamic Lubrication

Q3 Engineering
Hardik Gangadia, S. Sheth
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引用次数: 0

Abstract

It covers the tribological behaviour of sliding surfaces, one of which has bowtie-shaped micro-dimples. Against the other fixed, textured wall, one wall is smooth and moving at a constant speed. For the formation of hydrodynamic pressure and tribological behaviour, the effects of bowtie-shaped dimples and orientated bowtie-shaped dimples have been compared with circular-shaped dimples. Additionally, the impact of sliding speed, dimple area density, and dimple depth on tribological behaviour was examined. The findings show that compared to a circular-shaped dimple, an atypical bowtie-shaped and orientated bowtie-shaped dimple generates a higher net hydrodynamic pressure in the fluid domain and offers improved stability between the sliding surfaces. It has been demonstrated that geometrical factors like dimple depth and area density as well as operational factors like sliding speed have a substantial impact on the hydrodynamic average pressure and tribological behaviour of sliding surfaces. The experimental results support the conclusions from the analysis and CFD.
流体动力润滑条件下领结型凹槽对滑动表面性能的影响
它涵盖了滑动表面的摩擦学行为,其中一个有领结形状的微凹陷。相对于另一面固定的、有纹理的墙,一面墙是光滑的,并以恒定的速度移动。对于动水压力的形成和摩擦学行为,本文比较了蝴蝶结型、定向蝴蝶结型和圆形蝴蝶结型的影响。此外,还研究了滑动速度、韧窝面积密度和韧窝深度对摩擦学行为的影响。研究结果表明,与圆形凹窝相比,非典型领结型和定向领结型凹窝在流体域中产生更高的净动水压力,并提高了滑动表面之间的稳定性。研究表明,几何因素(如凹窝深度和面积密度)以及操作因素(如滑动速度)对滑动表面的动水平均压力和摩擦学行为有重大影响。实验结果支持了分析和CFD的结论。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Tribologia: Finnish Journal of Tribology
Tribologia: Finnish Journal of Tribology Materials Science-Surfaces, Coatings and Films
CiteScore
2.20
自引率
0.00%
发文量
4
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