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Effects of cylindrical pit array on tribological property of Piston Cylinder sleeve friction pair in a BW-250 slime pump

机译:圆柱形钻头阵列对BW-250粘液泵中活塞缸套摩擦对摩擦学性的影响

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摘要

This study designed a bio-inspired piston with a cylindrical pit array according to the BW-250 slime pump piston based on the surface structure of earthworm and leech. The friction was tested and analyzed. The friction pair mechanic system was modeled for finite element analysis, and the oil film test was supplemented. Results demonstrate that the bio-inspired piston show a lower friction force than the standard piston and a drag reduction rate that is above 10%. Cylindrical pit array can reduce the flow velocity of lubricating oil and increase the oil film pressure. The length and thickness of the oil film over the bio-inspired piston are higher than those of standard pistons.
机译:本研究设计了一种基于BW-250粘液泵活塞的生物启发活塞,基于蚯蚓和水蛭的表面结构。 测试和分析摩擦。 摩擦对机械系统被建模用于有限元分析,并补充油膜试验。 结果表明,生物启发活塞呈低于标准活塞的摩擦力较低,减阻率高于10%。 圆柱形坑阵列可以降低润滑油的流速并增加油膜压力。 在生物启发活塞上的油膜的长度和厚度高于标准活塞的长度和厚度。

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