基于有限元的城市轨道交通列车钩缓装置压溃吸能仿真分析

张康隆1卢翀2卫亮3,4张惠涛5

Simulation Analysis of Pressing-Crack Energy Absorption of Urban Rail Transit Train Coupler Buffer Device Based on Finite Element

ZHANG KanglongLU ChongWEI LiangZHANG Huitao
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。
Abstracts:
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.
引文 / Ref:
张康隆, 卢翀, 卫亮, 等. 基于有限元的城市轨道交通列车钩缓装置压溃吸能仿真分析. 城市轨道交通研究, 2022, 25(3): 187.
ZHANG Kanglong, LU Chong, WEI Liang, et al. Simulation analysis of pressing-crack energy absorption of urban rail transit train coupler buffer device based on finite element. Urban Mass Transit, 2022, 25(3): 187
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