铁路重载货车车轮轮径差状态下动力学表征研究  

Study on the dynamic characterization under the influence of wheel diameter difference in heavy-haul railway wagons

作　　者：王蒙 彭莘宇 汪群生[2] WANG Meng;PENG Xinyu;WANG Qunsheng(Shenhua Railway Equipment Co.,Ltd.,Beijing 100120,China;State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]神华铁路装备有限责任公司,北京100120 [2]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《现代制造工程》2021年第3期40-45,共6页Modern Manufacturing Engineering

基　　金：国家重点研发计划资助项目(2018YFB1201702)。

摘　　要：为研究铁路重载货车车轮轮径差状态下的动力学响应,进而为轮对车轮轮径差间接识别作基础支撑,建立了C80铁路重载货车动力学模型;根据国内相关动力学评价标准,计算车辆在车轮轮径差状态下的动力学性能,包括车辆蛇行临界速度、运行平稳性和安全性等;并对车辆进行现场试验验证。结果表明:车轮轮径差对车辆蛇行临界速度、运行平稳性和安全性均存在一定程度的影响;在5 mm同轴轮径差范围内,车辆各动力学指标均满足国家相关标准;车辆动力学响应与车轮轮径差存在一定程度的映射关系。In order to study the heavy-haul railway wagon dynamics response under the influence of the wheel diameter difference,thus offer support for the recognition of wheel diameter difference,C80 heavy-haul railway wagon dynamics model was established.According to the domestic related dynamic evaluation standard,the vehicle dynamic performance under the wheel diameter difference was calculated,including the snaking speed,running stability,security,etc.,what’s more,the vehicle field test validation has also been accomplished.The results showed that:wheel diameter difference has a certain degree of influence on the snaking speed,stability and safety of the vehicles;within the range of 5 mm coaxial wheel diameter difference,all the vehicle dynamic indexes meet the relevant national standards,and there is a certain degree of mapping between the vehicle dynamic response and wheel diameter difference.

关 键 词：铁路重载货车 车轮轮径差 动力学 

分 类 号：U261[机械工程—车辆工程]