基于正交实验法的弓网耦合除冰数值模拟  

Numerical Simulation of Pantograph-Catenary Coupling De-icing Based on Orthogonal Experiment Method

作　　者：吴磊[1,2] 徐梦楠 张华鹏 吴蔚 丁建明 WU Lei;XU Mengnan;ZHANG Huapeng;WU Wei;DING Jianming(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,P.R.China;Key Laboratory of Icing and Anti/De-icing,China Aerodynamics Research and Development Center,Mianyang 621000,P.R.China;State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,P.R.China)

机构地区：[1]西南交通大学机械工程学院,成都610031 [2]中国空气动力研究与发展中心结冰与防除冰重点实验室,绵阳621000 [3]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2023年第S01期29-41,共13页南京航空航天大学学报（英文版）

基　　金：supported by Sichuan Science and Technology Program(No.2021YFG0194);the Key Laboratory of Icing and Anti-icing,China Aerodynamics Research and Development Center(No.IADL20210410).

摘　　要：基于正交实验方法和有限元仿真方法,设计五因素四水平正交实验表,研究了作业速度、覆冰厚度、弓头质量、弓头刚度以及弓头阻尼对除冰率的影响。建立了接触网‑覆冰有限元模型和受电弓‑接触网耦合有限元模型,并通过对比理论值和仿真值验证了有限元模型的准确性。仿真结果表明:作业速度和弓头质量对接触力和接触线抬升量影响较大,进而影响除冰率,但弓头质量大于17 kg后影响程度趋于平缓。正交实验结果表明:列车运行速度、弓头质量和覆冰厚度是影响除冰率的主要因素,而弓头刚度和阻尼对除冰率影响不显著。这些结果可为提高列车行驶安全性、改善弓网耦合除冰技术提供参考。An investigation was conducted to examine the impact of the operating speed,ice thickness,pantograph head mass,pantograph head stiffness,and pantograph head damping on the de-icing rate.The investigation utilized the orthogonal experimental method and finite element simulation,employing a five-factor four-level orthogonal experimental design.Finite element models(FEM)were utilized to establish models for the ice-coating of the overhead contact system(OCS)and the coupling of the pantograph and catenary(PAC).The accuracy of the FEM was subsequently validated through a comparison between theoretical values and simulation results.The simulation results show that the operating speed and pantograph head mass have a significant impact on the contact force and contact wire lift amount,which in turn affects the de-icing rate.However,the influence of the pantograph head mass becomes less significant when it exceeds 17 kg.The results of the orthogonal experiment suggest that the de-icing rate is primarily influenced by the train speed,pantograph head mass,and ice thickness.The effects of pantograph head stiffness and damping are deemed insignificant.These results can provide references for improving train operation safety and PAC coupling de-icing technology.

关 键 词：正交试验法 有限元分析 弓网耦合 机械除冰 

分 类 号：U225[交通运输工程—道路与铁道工程]