CAJ | 학술논문

根据耐碰撞车体结构原理设计出具有吸能效果的耐碰撞性车体，进行了车体结构一、二位车端撞击刚性墙仿真研究，结果表明，该车体中车端结构产生塑性大变形，客室结构无塑性变形，车体耐碰撞性明显得到改善，车体纵向刚度分布合理。建立了单节客车碰撞动力学模型，仿真研究车钩缓冲特性，结果表明，带有车钩及防爬吸能装置的车体结构具有较好的吸能特性，在防爬吸能元件压溃行程全部压缩后，车体端部产生塑性变形吸能碰撞能量，客室未发生塑性变形。
근거내팽당차체결구원리설계출구유흡능효과적내팽당성차체，진행료차체결구일、이위차단당격강성장방진연구，결과표명，해차체중차단결구산생소성대변형，객실결구무소성변형，차체내팽당성명현득도개선，차체종향강도분포합리。건립료단절객차팽당동역학모형，방진연구차구완충특성，결과표명，대유차구급방파흡능장치적차체결구구유교호적흡능특성，재방파흡능원건압궤행정전부압축후，차체단부산생소성변형흡능팽당능량，객실미발생소성변형。
According to design concepts of the car‐body structure of crashworthiness vehicle ,a vehicle car‐body structure with improved crashworthiness property is designed , and simulation of crash features of the improved car‐body structure is carried . T he results show that the large plastic deformation is produced only at the ends of the car‐body but no deformation in passenger space .T he crashworthiness of the car‐body is obviously improved and the longitudinal stiffness distribution of the car‐body is reasonable .An impact dynamic modal to assess the crashworthiness of a single railway vehicle was built and tested with simulation ,and it is showed the car‐body with coupler‐buffering and the anti climbing energy absorption device has better energy‐absorption ability .After crushing stroke test ,the ends of the car‐body absorb energy with plastic deformation but no deformation in passenger space .