中南大学学报（自然科学版）2024，Vol.55Issue(3)：1252-1262,11.DOI:10.11817/j.issn.1672-7207.2024.03.035
车辆服役环境对高速列车轴箱轴承温度的影响分析
Analysis of influence of vehicle environment on temperature of high speed railways axle box bearing
摘要
Abstract
A power loss model considering the heat dissipation of the axle box surface and the heat transfer inside the bearing was constructed,and the load of the axle box bearing in different service environments was analyzed.Considering the influence of convective heat transfer by air flow field on the surface of the axle box,a refined temperature model of the axle box bearing was established to analyze the influence of different service environments on the temperature distribution and temperature characteristics of the axle box bearing,and the validity of the model was verified by bearing test bench.The results show that when the vehicle speed increases from 220 km/h to 300 km/h,the bearing friction torque increases by 11.4%,and the wheel polygon order increases from 16 to 22,the friction torque increases by 2.8%on average.The highest temperature of the axle box bearing appears in the contact area between the inner ring and the rolling body,and the lowest temperature appears on the shaft and is close to the ambient temperature.When the speed increases from 220 km/h to 300 km/h,the maximum temperature of the bearing increases by 9.2℃,and the temperature at each node increases to a certain extent.When the polygon order of the wheel increases from 16 to 22,the maximum temperature increases by 1.1%on average,and when the polygon depth amplitude increases from 10 dB to 18 dB,the maximum temperature increases by 1.4%on average.关键词
轴箱轴承/车辆-轨道耦合动力学模型/轴承温度场/有限元Key words
axle box bearing/vehicle-track coupling dynamics model/bearing temperature field/finite element分类
交通工程引用本文复制引用
黄梓幸,宋冬利,罗亚萍,张凡,田光荣..车辆服役环境对高速列车轴箱轴承温度的影响分析[J].中南大学学报（自然科学版）,2024,55(3):1252-1262,11.基金项目
国家重点研发计划项目(2019YFB1405401) （2019YFB1405401）
国铁集团科研计划项目(J2020J006) （J2020J006）
西南交通大学科技创新项目(2682021CX038)(Project(2019YFB1405401)supported by the National Key Research and Development Program of China （2682021CX038）
Project(J2020J006)supported by the Scientific Research Program of China Railway Group （J2020J006）
Project(2682021CX038)supported by the Science and Technology Innovation Project of Southwest Jiaotong University) （2682021CX038）
