摘要
本文以受电弓为研究对象,研究多物理场耦合场景下受电弓动态响应。首先构建受电弓流场模型和弓网耦合系统动力学模型,然后搭建流固耦合模型,并基于EN标准验证搭建的流固耦合模型的可靠性,最后计算了行车状态下横风对弓网系统的影响。结果表明:相同车速下横风会加剧碳滑板振动,导致接触力波动变大,同时也会降低下臂杆倾角标准差,削弱框架振动;车速越快,横风对碳滑板振动的加剧效果越明显,同时受电弓框架振动削弱越明显。
This paper focuses on the pantograph as the research subject,investigating its dynamic response under multiphysics coupling scenarios.Firstly,a pantograph flow field model and a pantograph-catenary interaction system dynamics model were established.Secondly,a fluid-structure interaction model was constructed,and its reliability was validated as per EN standard.Finally,the influence of crosswinds on the pantograph-catenary system during operation was analyzed.The results show that under identical vehicle speeds,crosswinds significantly amplify the vibration of the carbon contact strip,leading to increased contact force fluctuation.Concurrently,crosswinds reduce the standard deviation of the lower arm inclination angle,thereby mitigating frame vibration.Furthermore,as vehicle speed increases,the amplifying effect of crosswinds on carbon strip vibration becomes more pronounced,while the suppression of pantograph frame vibration is also enhanced.
作者
胡亚鹏
李新康
王振麟
Hu Yapeng;Li Xinkang;Wang Zhenlin(Department of Technologies,CRRC Academy(Qingdao)Co.,Ltd,Shandong,Qingdao 266109,China;Engineering Research Center of Railway Industry on Advanced Structural Materials,National Innovation Center(Qingdao)of High Speed Train,Shandong,Qingdao 266000,China)
出处
《铁道技术标准(中英文)》
2025年第6期19-28,共10页
Railway Technical Standard(Chinese & English)
基金
国家重点研发计划(2023YFB4302500)。
关键词
受电弓
多物理场耦合
横风
气动特性
pantograph
multi-physics coupling
crosswind
aerodynamic characteristics
