摘要
多孔储液介质是启发自关节软骨的仿生摩擦材料,因具有良好的自润滑性能,在工业生产中发挥着重要作用。早期多孔储液介质多是针对不同基体材料及骨架结构进行优化设计,或是根据单因素理想边界建立润滑数值模型,对多孔储液介质的润滑机理缺乏系统的理论描述,限制了其大规模的工业应用。根据不同的结构形式和润滑机理,将多孔储液介质分为有限直孔储液介质和随机多孔储液介质,总结了有限直孔储液介质中空化现象、流体运动、惯性效应、气-液耦合对润滑性能的影响,论述了基于渗流力学、流-固耦合作用的随机多孔储液介质自润滑理论的发展,以及多孔储液介质的应用现状。分析和讨论了多孔储液介质自润滑机理研究的难点问题,对推动多孔储液介质润滑机理的研究和工程实践应用具有重要的参考意义。
The liquid-porous medium is a type of biomimetic tribological material,which inspired by articular cartilage and plays a significant role in industrial production due to its good self-lubricating properties.Early designs of the porous liquid storage media are mostly based on different matrix materials and framework structures.The lubrication numerical models of the porous liquid storage media were established based on the ideal single-factor boundaries and lacked a systematic theoretical description,which limits the large-scale industrial application of the liquid-porous medium.According to the different structures and lubrication mechanisms of the liquid-porous medium,they are classified into the finite straight pore liquid storage media and the random porous liquid storage media.On this basis,the effects of cavitation,fluid motion,inertia effect,and fluid-solid interaction on the lubrication performances of the finite straight pore liquid storage media are summarized.And the development of the random porous liquid storage medium lubrication theory related to seepage mechanics,fluid-solid coupling,and the application status of the liquid-porous medium are also summarized.The problems that existed in studying the lubrication mechanism of the liquid-porous medium are analyzed and discussed,which have important reference significance for promoting the study of the lubrication mechanism and the application in engineering practice of the liquid-porous medium.
作者
秦红玲
徐行
舒现维
张小龙
李响
QIN Hongling;XU Xing;SHU Xianwei;ZHANG Xiaolong;LI Xiang(School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350116;Hubei Key Laboratory of Hydroelectric Machinery Design&Maintenance,China Three Gorges University,Yichang 443000)
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2022年第19期166-179,共14页
Journal of Mechanical Engineering
基金
国家自然科学基金(51975325)
三峡大学学位论文培优基金项目资助。
关键词
多孔介质
润滑机理
流-固耦合
渗流特性
模拟仿真
porous medium
lubrication mechanism
fluid-solid interaction
seepage characteristic
simulation
