轮轨接触条件对风载作用下高速列车运行安全性的影响  

Influence of wheel rail contact conditions on the running safety of high-speed train under wind load

作　　者：孙丽霞 朱亮 吴宁 池长欣 王友彪 周春阳 SUN Lixia;ZHU Liang;WU Ning;CHI Changxin;WANG Youbiao;ZHOU Chunyang(Railway Science and Technology Research and Development Center,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Wheel-Rail System Laboratory,National Engineering Research Center of System Technology for High-Speed Railway and Urban Rail Transit,Beijing 100081,China;Department of Science,Technology and Information Technology,China State Railway Group Co.Ltd.,Beijing 100844,China;Locomotive and Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司铁道科学技术研究发展中心,北京100081 [2]高速铁路与城轨交通系统技术国家工程研究中心轮轨关系实验室,北京100081 [3]中国国家铁路集团有限公司科技和信息化部,北京100844 [4]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081

出　　处：《中南大学学报(自然科学版)》2025年第3期1210-1222,共13页Journal of Central South University:Science and Technology

基　　金：中国国家铁路集团有限公司科技研究开发计划课题(N2023T010);中国铁道科学研究院集团有限公司院基金课题(2021YJ270)。

摘　　要：采用空气动力学与车辆动力学仿真分析相结合的方法,研究轮轨接触与风载、曲线线型多因素耦合下的高速列车运行安全性,揭示不同的轮轨接触条件下高速列车风载运行安全失效形式。研究结果表明:轮轨接触条件对列车风载动力学性能有明显影响,新车轮型面与低轮轨摩擦因数组合工况对车辆运行安全性偏不利,磨耗车轮型面与高轮轨摩擦因数组合工况对车体横向运行平稳性偏不利;在不同的轮轨摩擦因数下,轮对的蛇行运动姿态有明显差异,在低轮轨摩擦因数下,轮对在背风侧钢轨附近作小幅值蛇行运动,在高轮轨摩擦因数下,轮对在纯滚动线附近作大幅值蛇行运动;轮轨接触条件对列车运行安全失效形式也有明显影响,新车轮型面与低轮轨摩擦因数组合工况下易发生轮重减载及轮轴横向力超限的问题,而磨耗车轮型面与高轮轨摩擦因数组合工况下易导致低频晃车。Running safety of high-speed train under coupling effect of wheel rail contact condition,wind load and curves was investigated using aerodynamics and vehicle dynamics simulation method,and failure forms of highspeed trains under wind load under different wheel rail contact conditions were revealed.The results show that wheel rail contact conditions have a significant impact on wind load dynamic performance of trains.Under new wheel profile and low wheel rail friction coefficient condition,vehicle running safety tends to go worse,and under worn wheel profile and high wheel rail friction coefficient condition,the lateral ride comfort of vehicle body tends to go worse.Wheelset hunting motion changes greatly under different wheel rail friction coefficient conditions.Under low wheel rail friction coefficient conditions,wheelset undergoes small amplitude hunting motion near leeward side rail,while under high wheel rail friction coefficient conditions,wheelset undergoes large amplitude hunting motion near pure rolling line.Wheel rail contact conditions also have a significant impact on failure mode of train.Under the condition of new wheel profile and low wheel rail friction coefficient,wheel unloading rate and wheelset lateral force are prone to exceed the safety limit,while under the condition of worn wheel profile and high wheel rail friction coefficient,low frequency hunting is prone to occur.

关 键 词：风载 轮轨摩擦因数 磨耗车轮型面 高速列车 低频晃车 

分 类 号：U266.2[机械工程—车辆工程]