自然环境条件下轮轨接触黏着特性研究进展  

Research Progress on Wheel-Rail Contact Adhesion Characteristic under Environmental Conditions

作　　者：何成刚 张佩祯 邹港 宋智博 刘吉华 HE Chenggang;ZHANG Peizhen;ZOU Gang;SONG Zhibo;LIU Jihua(School of Railway Tracks and Transportation,Wuyi University,Guangdong Jiangmen 529020,China;Engineering Research Center of Advanced Energy Saving Driving Technology,Ministry of Education,Sichuan Chengdu 610031,China;Guangdong Xingfa Aluminum Co,Ltd.,Guangdong Foshan 528137,China)

机构地区：[1]五邑大学轨道交通学院,广东江门529020 [2]先进驱动节能技术教育部工程研究中心,四川成都610031 [3]广东兴发铝业有限公司,广东佛山528137

出　　处：《摩擦学学报》2022年第3期642-656,共15页Tribology

基　　金：广东省基础与应用基础研究基金项目(2019A1515110807);广东省教育厅青年创新人才项目(2018KQNCX271);先进驱动节能技术教育部工程研究中心开放研究项目(SWEDT-KF201903)资助。

摘　　要：轮轨黏着是铁路运输中的关键基础性科学问题之一,而轮轨接触界面良好的黏着状态是列车安全和高品质运行的根本保障.轮轨系统作为1个开放的系统,受到各种自然环境因素的影响,如湿度、温度、水、风沙甚至铁氧化物,而所有的这些环境因素都会影响轮轨接触界面的黏着状态和损伤行为.本文中综述了水、湿度、温度和风沙等自然环境因素对轮轨黏着特性影响规律的研究进展,分析了自然环境因素下轮轨界面铁氧化物特征,重点探讨了自然环境因素对铁氧化物形成的影响及其对轮轨接触黏着特性的影响规律和作用机理,并提出了轮轨黏着的未来研究方向.Wheel/rail adhesion is one of the key basic scientific issues in railway transportation,and a good adhesion state of the wheel/rail contact interface is the fundamental guarantee for the safety and high-quality operation of trains.The wheel/rail contact system is an open system,which is affected by various external natural environmental factors,e.g.humidity,temperature,water,windblown sand and even iron oxides,and all of these environmental factors can affect the adhesion state and damage behavior of the wheel/rail contact interface.This work expounds on the recent research progress on the influence law of natural environmental factors,e.g.water,humidity,temperature and windblown sand on wheel/rail adhesion characteristics and the characteristic of iron oxides at the wheel/rail contact interface under natural environmental factors was analyzed.The influence of natural environmental factors on the formation of iron oxides and the influence law and action mechanism of iron oxides on wheel/rail contact adhesion characteristics were emphatically discussed,and the future research direction of wheel/rail adhesion was put forward.The constant change of the natural environment has a great influence on the wheel-rail contact characteristics.Among them,the variations of temperature,humidity,rainfall and snowfall can easily cause the phenomenon of‘wet rail’,which directly affects the adhesion characteristics of wheel/rail contact interface.In addition,iron oxide and leaf pollution between wheel and rail contact interface also lead to low adhesion.The results show that water reducing the adhesion coefficient level between wheel and rail forms a unified understanding,while its action mechanism is still a matter of controversy.Therefore,the following research needs clarifying and unifying the understanding of the action mechanism of the influence of water media on the wheel-rail adhesion coefficient.Humidity and temperature affect the formation of oxides at the wheel/rail contact interface,and the combination of oxides and

关 键 词：轮轨摩擦 黏着特性 高温潮湿 腐蚀性环境 氧化锈蚀 影响因素 铁氧化物 

分 类 号：TH117.1[机械工程—机械设计及理论]