西北师范大学学报（自然科学版）2024，Vol.60Issue(1)：46-51,6.DOI:10.16783/j.cnki.nwnuz.2024.01.008
基于COMSOL的城轨弓网电弧多物理场仿真研究
Research on multiphysical field simulation of pantograph arc in urban rail transit based on COMSOL
摘要
Abstract
The high temperature produced by the pantograph arc is the main reason for the ablation of the pantograph catenary system materials.Studying the mechanism of the pantograph arc and mastering the temperature distribution of the pantograph arc will help reduce the ablation of the arc on the pantograph catenary system materials and increase the service life of the pantograph catenary system.Based on the theory of magnetohydrodynamics,this paper establishes a mathematical model suitable for pantograph arc plasma by setting relevant initial conditions according to the mathematical model of pantograph arc and using the finite element software COMSOL to solve the mathematical model of pantograph arc,analyzes the temperature distribution of pantograph arc and the surface of the two poles of arc,and explores the relationship between the duration of pantograph arc and the temperature of pantograph arc.The results show that the temperature in the central area of the arc is the highest,the surface temperature of the contact wire far exceeds the melting point of the contact wire material,and the duration of the pantograph arc is positively correlated with the temperature of the pantograph arc.This work can provide a basis for reducing the number of arc occurrences in the pantograph and catenary,as well as the erosion effect of the arc on the pantograph and catenary materials.关键词
城市轨道交通/弓网电弧/磁流体动力学/电弧温度Key words
urban rail transit/pantograph arc/magnetohydrodynamics/arc temperature分类
交通工程引用本文复制引用
宋梦杰,于晓英,王泽,苏洋,杨隽睿..基于COMSOL的城轨弓网电弧多物理场仿真研究[J].西北师范大学学报（自然科学版）,2024,60(1):46-51,6.基金项目
甘肃省科技专员专项(23CXGA0023) （23CXGA0023）
中国国家铁路集团有限公司科技研究开发计划重点课题(N2022X009) （N2022X009）
