摘要
压溃式半永久钩缓装置是城市轨道交通列车中间车厢耐撞性吸能的主要部件。在分析压溃式半永久钩缓装置结构与功能的基础上,建立了压溃式钩缓部件的有限元模型。基于EN 15227-2008《车体防撞性要求》的城市轨道交通列车中间车厢耐撞性评估场景,分析了压溃式半永久钩缓装置在12.5 km/h速度撞击工况下的动态响应。数值仿真结果表明:具备压溃吸能结构的半永久钩缓装置能有效吸收撞击动能。该装置通过减小撞击力峰值,起到了保护中间车厢车体结构、避免人员伤亡的作用。
Pressing-crack type semi-permanent coupler buffer device is the main component of crashworthiness energy absorption of urban rail transit train middle compartment.Based on the analysis of structure and function of the device,finite element model of a pressing-crack type coupler buffer component is established.Based on the crashworthiness evaluation scenario of train middle compartment specified in EN 15227-2008 Crashworthiness Requirements for Railway Vehicle Bodies,the dynamic response of the device under the impact condition of 12.5 km/h is analyzed.The numerical simulation results show that the semi-permanent coupler buffer device with pressing-crack energy absorption structure can effectively absorb the impact kinetic energy,protecting the body structure of the middle compartment and avoiding casualties by reducing the peak impact force.
作者
张康隆
卢翀
卫亮
张惠涛
ZHANG Kanglong;LU Chong;WEI Liang;ZHANG Huitao(School of Electronic and Information,Hubei Engineering Institute,435004,Huangshi,China)
出处
《城市轨道交通研究》
北大核心
2022年第3期187-190,共4页
Urban Mass Transit
基金
石家庄市科学研究与发展计划项目(211080251A)
中国铁道科学研究院集团有限公司院基金课题(2020YJ155)。
关键词
城市轨道交通车辆
钩缓装置
有限元建模
耐撞性评估
urban rail transit vehicle
coupler buffer device
finite element modeling
crashworthiness evaluation
