磁浮列车救援轮胎设计及其温度场分析  

Rescue Tire Design and Temperature Field Analysis of Maglev Train

作　　者：辜晨亮 由天宇 翟超智 杨红辉 GU Chenliang;YOU Tianyu;ZHAI Chaozhi;YANG Honghui(CRRC Qingdao Sifang Locomotive&Rolling Stock Co.,Ltd.,Qingdao 266111,China;National Key Laboratory of High-speed Maglev Technology of CRRC Qingdao Sifang Locomotive&Rolling Stock Co.,Ltd.,Qingdao 266111,China;Key Laboratory of Traffic Safety on Track Ministry of Education,Central South University,Changsha 410083,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司,山东青岛266111 [2]中车青岛四方机车车辆股份有限公司高速磁浮运载技术全国重点实验室,山东青岛266111 [3]中南大学轨道交通安全教育部重点实验室,湖南长沙410083

出　　处：《铁道车辆》2024年第5期135-139,共5页Rolling Stock

摘　　要：文章根据磁浮列车的接口需求设计了其紧急情况下的救援轮胎。首先,对其进行了静负荷分析、稳态滚动分析;提取轮胎橡胶材料的应力场及应变场数据后,编写程序计算生热率;再通过编写子程序导入生热率并赋予各个单元,设定热边界条件,经热传导计算得到轮胎温度场。计算得到该轮胎在充压2.3 MPa、负荷1.0 t、行驶速度70 km/h、环境温度为25℃时的最高温度为93.77℃,出现在胎肩部位;通过计算不同速度下的轮胎温度场,发现轮胎最高温度随行驶速度近似线性增大。The article describes a rescue tire designed for emergency situations according to the interface requirements of maglev trains.Firstly,static load and steady rolling analyses were carried out.After extracting the stress field and strain field data of the tire's rubber material,a program was written to calculate the heat generation rate;then the heat generation rate was imported and given to each unit by writing a subroutine to set the thermal boundary conditions,and the temperature field of the tire was obtained by heat conduction calculation.The maximum temperature of the tire is 93.77℃,which occurs in the shoulder area,when the tire is filled with a pressure of 2.3 MPa,loaded with 1.0 t,and driven at 70 km/h at an ambient temperature of 25℃.By calculating the temperature field of the tire at different speeds,it is found that the maximum temperature of the tire increases approximately linearly with the driving speed.

关 键 词：磁浮列车 温度场 有限元分析 轮胎设计 

分 类 号：U270.2[机械工程—车辆工程]