中国机械工程2025，Vol.36Issue(5)：1111-1122,12.DOI:10.3969/j.issn.1004-132X.2025.05.023
多功能车体间外风挡在高速动车组上的适用性研究
Research on Applicability of Multi-functional Inter-vehicle External Vestibule Diaphragm in High-speed EMUs
摘要
Abstract
In order to enhance the inter-vehicle coupling,high-speed EMUs were usually equipped with inter-vehicle longitudinal dampers at the car end.However,the large size and high cost of these dampers were in contradiction with the demands for lightweight,easy-to-operate,high-performance and achievable vehicle-end coupling systems in future high-speed EMUs.In response,a multi-functional inter-vehicle external vestibule diaphragm device was proposed,which had the functions of the traditional external vestibule diaphragm to reduce noise and air resistance and to protect against rain and snow as well as had the characteristics of stiffness and damping that might replace the inter-vehicle longitudinal dampers,playing the role of inter-vehicle vibration damping.The numerical simu-lation model of the sub-unit structure of the multi-functional inter-vehicle external vestibule dia-phragm was established based on the operating principle,and the number of the sub-units when the multi-functional inter-vehicle external vestibule diaphragm might be equivalent to the damping func-tion of the inter-vehicle longitudinal dampers was determined by comparing the dynamic characteris-tics parameters of the sub-units with those of the inter-vehicle longitudinal damper under the same working conditions.Finally,the dynamic co-simulation of the numerical simulation model of the multi-functional inter-vehicle external vestibule diaphragm and the high-speed EMUs dynamic model were carried out by using Simulink.The influences on the dynamic performance of the vehicles with-out an inter-vehicle damping device,equipped with the inter-vehicle longitudinal dampers and equipped with the multi-functional inter-vehicle external vestibule diaphragm were compared.The re-sults show that compared with the inter-vehicle longitudinal dampers,the multi-functional inter-vehicle external vestibule diaphragm may further reduce the amplitude of yaw angle displacement of the carbody and the amplitude of lateral vibration acceleration of the carbody,suppress the yaw vibra-tion of the carbody more efficiently,and further improve the lateral ride quality of the vehicle running.关键词
高速动车组/轻量化/多功能车体间外风挡/车体间纵向减振器/车辆动力学Key words
high-speed electric multiple unit(EMU)/lightweight/multi-functional inter-vehicle external vestibule diaphragm/inter-vehicle longitudinal damper/vehicle dynamics分类
交通工程引用本文复制引用
赵苍鹏,代亮成,池茂儒,郭兆团,曾鹏程,孙宝恺..多功能车体间外风挡在高速动车组上的适用性研究[J].中国机械工程,2025,36(5):1111-1122,12.基金项目
国家重点研发计划(2022YFB4301202) （2022YFB4301202）
