车轮型面演化对重载机车动态曲线通过性研究  

Study on Wheel Profile Evolution for Dynamic Curve Passing Performance of Heavy Haul Locomotive

作　　者：刘鹏飞[1] 郝凯 王晨 王奥 LIU Peng-fei;HAO Kai;WANG Chen;WANG Ao(State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures,Shijiazhuang Tiedao University,Hebei Shijiazhuang 050043,China;School of Mechanical Engineering,Shijiazhuang Tiedao University,He-bei Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,河北石家庄050043 [2]石家庄铁道大学机械工程学院,河北石家庄050043

出　　处：《机械设计与制造》2023年第12期24-29,共6页Machinery Design & Manufacture

基　　金：国家自然科学基金项目(52072249);河北省高等学校科学技术研究项目(QN2021232)。

摘　　要：基于车-轨耦合动力学理论、Kik-Piotrowski算法和Archard磨耗模型,应用UM软件建立重载机车动力学和车轮磨耗预测模型,分析车轮型面演化对不同半径曲线通过性的影响,并与实测数据对比验证模型的准确性,研究不同半径曲线下动力学指标及轮轨磨耗参数变化规律。仿真分析结果表明:车轮型面演化前期使得脱轨系数、轮重减载率明显提高,不利于机车安全通过曲线;轮重减载率和车体横向加速度在曲线半径900m取得最小值,轮轨磨耗指标在(300~600)m半径曲线减小幅度最大,其中磨耗指数为66.5%。建议设计曲线半径应避免(300~600)m,选择900m最佳。Based on the vehicle-rail coupling dynamics theory,Kik-Piotrowski algorithm and Archard wear model,the prediction model of heavy-haul locomotive dynamics and wheel wear was established with UM software.The influence of wheel profile evolution on the passing performance of curves with different radius was analyzed,and the accuracy of the model was verified by comparing with the measured data.The dynamic indexes and wheel/rail wear parameters under different radius curves were studied.The simulation results show that the derailment coefficient and wheel load reduction rate increase obviously in the early stage of wheel profile evolution,which is not conducive to the safe passage of the locomotive curve.The minimum values of wheel load reduction rate and body lateral acceleration are obtained at the radius of 900m,and the wheel/rail wear index decreases the most at the radius of(300~600)m,in which the wear index is 66.5%.It is recommended that the radius of the design curve be avoided from 300 to 600m,and 900m is the best.

关 键 词：重载机车 曲线 动力学指标 磨耗指标 车-轨耦合 

分 类 号：TH16[机械工程—机械制造及自动化] U270.1[机械工程—车辆工程]