Effects of oil pocket shape and density on friction in reciprocating sliding

IF 2.2 3区工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2022-04-19 DOI:10.17531/ein.2022.2.15

Slawomir Wos, W. Koszela, A. Dzierwa, R. Reizer, P. Pawlus

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引用次数: 3

Abstract

The purpose of this work is to study the effect of oil pocket shape and density on friction in reciprocating sliding. The experiments were conducted in reciprocating motion under starved lubrication conditions. Tribological tests were performed using an Optimol SRV5 tribotester. The frictional pair consisted of two discs of 42CrMo4 steel. One disc was laser textured. The oil pockets had circular and sandglass shapes. Disc samples of various texture shapes were characterized by the same pit-area ratios. The operating parameters were the same for all friction pairs. In most cases, surface texturing led to reductions in friction force value and scatter. For both dimple shapes, the best tribological properties were achieved for oil pocket density of 9%. When discs with circular dimples were tested, the highest resistance to motion was received for the highest pit-area ratio of 9%. On the contrary, the worst tribological performance of discs with sandglass-shaped oil pockets of sandglass shape were obtained for the largest oil pocket density of 22%.

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油袋形状和密度对往复滑动摩擦的影响

本文的目的是研究油袋形状和密度对往复滑动摩擦的影响。实验在缺氧润滑条件下进行往复运动。使用Optimol SRV5摩擦测试仪进行摩擦学测试。摩擦副由两个42CrMo4钢盘组成。一张光盘是激光纹理。油袋呈圆形和沙漏状。不同纹理形状的圆盘样品具有相同的凹坑面积比。所有摩擦副的工作参数相同。在大多数情况下，表面纹理导致摩擦力值和散射的减少。对于两种凹窝形状，当油穴密度为9%时，摩擦学性能最佳。当圆窝圆盘测试时，最高坑面积比为9%时，获得最大的运动阻力。砂状油袋的摩擦磨损性能最差，油袋密度最大，为22%。

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

Eksploatacja I Niezawodnosc-Maintenance and Reliability ENGINEERING, MULTIDISCIPLINARY-

CiteScore

5.70

自引率

24.00%

发文量

审稿时长

3 months

期刊介绍： The quarterly Eksploatacja i Niezawodność – Maintenance and Reliability publishes articles containing original results of experimental research on the durabilty and reliability of technical objects. We also accept papers presenting theoretical analyses supported by physical interpretation of causes or ones that have been verified empirically. Eksploatacja i Niezawodność – Maintenance and Reliability also publishes articles on innovative modeling approaches and research methods regarding the durability and reliability of objects.