基于ANSYS%2fLS-DYNA轨道卧铺客车乘员二次碰撞安全性的研究.pdfVIP

基于 ANSYS/LS-DYNA 轨道卧铺客车乘员二次碰撞安全性研究 刘艳文，李本怀，王科飞，李成林 （中国北车长春轨道客车股份有限公司，吉林长春 130062 ） 摘 要：针对轨道卧铺客车包厢结构复杂，乘员二次碰撞具有多样化，且国内少有相关研究文献的现状，率先以某 200km/h 卧铺 客车为基体，定义 6 个典型碰撞工况验证其耐撞性的同时研究乘员二次碰撞安全性。利用“一次碰撞响应可被重复使用”、“乘员二 [15] 次碰撞可与车辆一次碰撞剥离” 等重要结论，通过详细建立卧铺车厢结构，将客车一次碰撞“加速度—时间”响应曲线作为输入， 借鉴汽车乘员安全标准 FMVSS 208[17]，对不同位置、不同姿态、不同性别乘员的二次碰撞安全性进行研究，结果表明坐姿乘员相 比于躺姿乘员处于更为危险的位置，背对客车运行方向的躺姿乘员受到的伤害相对较小，下铺躺姿乘员头部可能与餐桌发生多次碰 撞而产生更大的损害，中铺、上铺乘员与护栏碰撞导致身体翻转，有从床铺上坠落的危险。论文打破了国内卧铺乘员二次碰撞安全 性研究的空白，为体现以人为本思想的卧铺车厢结构设计及改进提供了理论依据。 关键字：卧铺客车；耐碰撞性；二次碰撞；安全评价；ANSYS/LS-DYNA 中文图书分类号： 文献标识码：A Research On Secondary Collision Safety Of Railway Sleeper Vehicle Passengers Based on ANSYS/LS-DYNA software Liu Yanwen LiBenhuai WangKefei LiChenglin (CNR Changchun Railway Vehicles Co.,Ltd., Changchun Jilin 130062, China) Abstract: Aiming at the status that the carriage structure of railway sleeper vehicle is more complex, secondary collisions of occupants take in diversification and few relevant research literature domestic, taking the lead in a 200km/h sleeper vehicle as the matrix, its crashworthiness is verified and occupant crash safety in secondary collisions is studied at the same time by 6 typical cases. Using important conclusions such as “the primary collision response can be used repeatedly”, “the occupant secondary collision can be separated from the vehicle primary collision”, by establishing the sleeper compartment structure detailed, inputting the “acceleration-time” response curves of vehicle primary collision to the compartment and drawing lesions from the occupan