中南大学学报（自然科学版）2025，Vol.56Issue(4)：1673-1685,13.DOI:10.11817/j.issn.1672-7207.2025.04.035
谐波型与高斯型高速车轮多边形磨耗对车辆-轨道动力作用的影响分析
Analysis of influence of harmonic waveform and Gaussian waveform of high-speed wheel polygons on dynamic vehicle-track interaction
摘要
Abstract
A rigid-flexible coupled dynamics model of the vehicle-track system was established,with both the harmonic waveform and the Gaussian waveform being utilized as excitation inputs to systematically investigate their effects on system dynamics.The results show that,within the speed range of 100-300 km/h,the wheel-rail force,vertical vibration accelerations of both axle box and rail,as well as the fastener force are found to be significantly greater when induced by Gaussian-type polygonal wear compared to harmonic-type wear,which is attributed to the wavelength characteristics of Gaussian-type wear.At higher speeds of 350-400 km/h,the differences in wheel-rail forces and axle box vibration accelerations between the two wear types are observed to become negligible.The vibration acceleration of the axle box under Gaussian-type polygonal wear is demonstrated to be inversely proportional to the fitting standard deviation σ,with smaller σ values corresponding to greater vibration amplitudes.关键词
车轮多边形/轴箱垂向加速度/轮轨垂向力/高斯函数Key words
wheel polygonal wear/vertical acceleration of axle box/vertical wheel-rail force/Gaussian function分类
交通工程引用本文复制引用
张宁,陶功权,王鹏,温泽峰..谐波型与高斯型高速车轮多边形磨耗对车辆-轨道动力作用的影响分析[J].中南大学学报（自然科学版）,2025,56(4):1673-1685,13.基金项目
国家自然科学基金资助项目(52475138,U21A20167) （52475138,U21A20167）
四川省科技计划项目(2023YFH0049) （2023YFH0049）
轨道交通运载系统全国重点实验室自主课题资助项目(2024RVL-T08)(Projects(52475138,U21A20167)supported by the National Natural Science Foundation of China （2024RVL-T08）
Project(2023YFH0049)supported by the Science and Technology Program of Sichuan Province （2023YFH0049）
Project(2024RVL-T08)supported by the Scientific Research Foundation of the State Key Laboratory of Rail Transit Vehicle System of Southwest Jiaotong University) （2024RVL-T08）
