中南大学学报（自然科学版）2024，Vol.55Issue(3)：1188-1200,13.DOI:10.11817/j.issn.1672-7207.2024.03.030
高速受电弓安装形式对列车气动性能的影响
Influence of high-speed pantograph installation forms on train aerodynamic performance
摘要
Abstract
As an integral component of high-speed trains,the structural characteristics of pantographs have a direct impact on the aerodynamic performance of high-speed trains.A numerical simulation method was adopted,based on the three-dimensional steady-state SST k-ω model,to analyze the effects of various installation forms of high-speed pantographs on the aerodynamic performance of high-speed train.Furthermore,the change in the aerodynamic drag of each vehicle section was analyzed and its adaptability in a cross-wind environment was explored.The results show that when the high-speed train is running in the open line,the different installation forms of high-speed pantographs have a small effect on the aerodynamic performance of the whole car,but the aerodynamic drag of the vehicle in which the pantograph is located varies considerably.Compared with the knuckle-upstream and front-lifted pantograph condition,the knuckle-downstream and front-lifted pantograph condition reduces the aerodynamic drag of the entire train by 2.10%.Notably,the aerodynamic drag of the sixth car is decreased by 6.06%.In cross-wind conditions,the cross-wind stability of the whole car is better when the pantograph is configured as knuckle-downstream and front-lifted.In contrast to the knuckle-downstream and front-lifted pantograph settings,the force and overturning moment of the whole car are reduced by 2.52%and 3.48%,respectively.Remarkably,the transverse force and overturning moment of the sixth car decrease by 11.31%and 18.50%,respectively.Therefore,the aerodynamic performance of the pantograph arrangement with or without crosswind on the open line is optimal for knuckle-downstream and front-lifted pantograph.Moreover,the elevated front pantograph contributes to refining the flow field arrangement in the zone behind the pantograph,ultimately accomplishing the objective of enhancing the aerodynamic performance of the entire vehicle.关键词
高速列车/高速受电弓/气动布局/横风适应性Key words
high speed train/high speed pantograph/aerodynamic layout/cross wind applicability分类
交通运输引用本文复制引用
高广军,项涛,丁艳思,向南燊,许澳,张洁..高速受电弓安装形式对列车气动性能的影响[J].中南大学学报（自然科学版）,2024,55(3):1188-1200,13.基金项目
国家重点研发计划项目(2020YFA0710903) （2020YFA0710903）
国家铁路集团有限公司科技研究开发计划项目(K2021J004-B)(Project(2020YFA0710903)supported by the National Key Research and Development Program of China （K2021J004-B）
Project(K2021J004-B)supported by the Science and Technology Research Program of China National Railway Group Co.Ltd.) （K2021J004-B）
