高速列车车轮踏面磨耗影响参数研究  

作　　者：唐勇 雷蕾[2] 徐辉[2] 

机构地区：[1]中国铁路广州局集团有限公司广州动车段,广州510088 [2]西南交通大学,成都610031

出　　处：《科技创新与应用》2024年第35期98-102,共5页Technology Innovation and Application

基　　金：中国铁路广州局集团有限公司科技研究开发计划(2020DZ05-J)。

摘　　要：为研究车轮踏面磨耗的关键影响因素,采用UM建立高速列车多体动力学仿真模型、轮轨接触模型、磨耗模型为一体的磨耗预测模型,在轮轨法向接触中采用Kik-Piotrowski模型进行法向接触求解,通过Fastsim算法求解接触斑内蠕滑力、黏滑区及滑动量分布,采用Specht磨耗模型计算磨耗量。利用预测模型研究关键参数对车轮踏面磨耗的影响。计算结果表明,摩擦系数影响车轮磨耗深度和分布,运行速度影响车轮磨耗深度,轨道不平顺影响车轮磨耗深度和分布,轮对内侧距增加会增加车轮磨耗深度和宽度;车辆上一系纵(垂)向、横向定位刚度及抗蛇形减振器节点刚度对车轮型面磨耗影响较小,轨道上扣件刚度对车轮磨耗影响较小。To study the key effect factors of wheel tread wear,UM was used to establish a high-speed train multi-body dynamics simulation model,wheel-rail contact model and wear prediction model,and Kik-Piotrowski model was used to solve the normal contact in wheel-rail contact.The creep force,stick-slip zone and slip momentum distribution were calculated by Fastsim algorithm,and the wear was calculated by Specht wear model.The influence of key parameters on wheel tread wear was studied by predictive model.The results show that the friction coefficient affects the depth and distribution of wheel wear,the running speed affects the depth and distribution of wheel wear,the track irregularity affects the depth and distribution of wheel wear,and the increase of the distance between backs of the wheel flanges increases the depth and width of wheel wear.The longitudinal(vertical)and lateral positioning stiffness of the vehicle and the stiffness of the anti-snake damper joints have little influence on the wheel profile wear,while the stiffness of the fastener on the track has little influence on the wheel wear.

关 键 词：高速列车 踏面磨耗 动力学模型 关键参数 摩擦系数 

分 类 号：U271.91[机械工程—车辆工程]