孔隙间距对多孔储液介质摩擦学性能的影响  

Effect of Pore Spacing on Tribological Properties of Porous Liquid Storage Media

作　　者：徐翔 陈江雄 曾毅 郭小雨 秦红玲 XU Xiang;CHEN Jiangxiong;ZENG Yi;GUO Xiaoyu;QIN Hongling(Hubei Key Laboratory of Hydroelectric Machinery Design&Maintenance,China Three Gorges University,Yichang Hubei 443002,China;Institute of Tribology,Fuzhou University,Fuzhou Fujian 350108,China)

机构地区：[1]三峡大学水电机械设备设计与维护湖北省重点实验室,湖北宜昌443002 [2]福州大学摩擦学研究所,福建福州350108

出　　处：《润滑与密封》2025年第4期40-47,共8页Lubrication Engineering

基　　金：国家自然科学基金项目(52275177,51975325,52175177)。

摘　　要：多孔储液介质作为贫油润滑材料引起了广泛的关注。为探究孔隙间距对多孔储液介质摩擦学性能的影响,通过数值模拟得到多孔储液介质孔隙间距与摩擦因数之间的关系;同时制备不同孔隙间距的多孔储液介质试样,并开展摩擦试验。通过摩擦因数、磨损量和表面形貌的测试,结果表明:提出的CFD计算方法与试验结果得到了较好的对应,证明CFD计算方法在试验工况下的计算可行性;在试验工况下,多孔储液介质的摩擦因数随着孔隙间距的增加先升高后降低,孔隙间距存在最佳间距使其综合润滑效果最好;多孔储液介质的磨损量随着孔隙间距的增加先降低后升高,表明合理设计孔隙间距有利于减小试样的磨损量,增强试样的润滑性能。研究结果为优化多孔储液介质结构优化设计提供了理论指导。Porous fluid storage media are often used as lean lubrication materials,which have attracted extensive attention.In order to explore the effect of pore spacing on the tribological properties of porous liquid reservoir media,the porous liquid storage media with different pore spacing were obtained by numerical simulation.The porous liquid storage media with different pore spacing were prepared,and the friction test was carried out.Through the friction coefficient,wear amount and surface topography test,it is verified that the proposed CFD calculation method corresponds well with the experimental results.The results show that under the experimental conditions,the friction coefficient of porous liquid storage media increases first and then decreases with the increase of pore spacing.There is an optimal pore spacing to make the comprehensive lubrication effect the best.The wear amount of porous liquid storage media decreases first and then increases with the increase of pore spacing,indicating that reasonable design of pore spacing is beneficial for reducing the wear of the sample and enhancing its lubrication performance.The research results provide theoretical guidance for optimizing the structural design of porous liquid storage media.

关 键 词：多孔储液介质 孔隙间距 自润滑 润滑性能 摩擦磨损 

分 类 号：TH117.1[机械工程—机械设计及理论]