碰撞事故车辆车体结构破坏分析
卫亮康巍万平
Analysis of Vehicle Body Structure Destruction in Collision Accident
WEI LiangKANG WeiWAN Ping
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作者信息:1.1. 大功率交流传动电力机车系统集成国家重点实验室，412001，株洲;
2.2. 中车株洲电力机车有限公司，412001，株洲
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Affiliation:The State Key Laboratory of Heavy Duty AC Drive Electric Locomotive Systems Integration, 412001, Zhuzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2022.09.027
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中图分类号/CLCN:U270.32
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栏目/Col:研究报告
摘要:
针对2015年3月25日发生在北京的城市轨道交通车辆碰撞事故，通过对事故车辆车体的结构破坏进行调查，拼接还原事故车厢的最终状态。车体结构破坏调查分析的研究结果表明：在复杂事故地形和钩缓系统引导的共同作用下，各节车厢发生了一系列相互错位的碰撞。事故车辆车体结构破坏的位置主要集中在驾驶室框架、底架、侧墙和端墙等模块连接处。由于驾驶室框架与底架连接处的失效，在与河道接触碰撞过程中，驾驶室内部空间被入侵约50 cm。第二节车厢是事故中变形破坏最严重的车厢，其紧邻头车的I端位纵向压缩量约为30 cm、垂向变形约为10 cm；与第三节车碰撞的II端位纵向压缩量约为40 cm，并在侧墙出现长约28 cm的裂纹。事故中涉及的全自动车钩和半永久车钩部分压溃，起到了一定的吸能作用。
Abstracts:
Targeting the urban rail transit vehicle collision accident which occurred in Beijing on March 25, 2015, the damage to accident vehicle structure is investigated and the final status of the accident compartment is reproduced. The research results of the structure damage investigation analysis show that: under the combined action of the complex accident geological condition and the guidance of coupler system, the compartments undergo a series of misalignment collision. The structural damage of the accident vehicle mainly concentrate in the connection between modules including driver’s cabin frame and chassis, side wall and end wall. Because of the failure of driver’s cabin frame and chassis connection, during collision with river, the space inside driver’s cabin is invaded by about 50 cm. The second compartment is the most deformed in the accident. The longitudinal compression of approximately 30 cm and the vertical deformation of about 10 cm is at the I end next to the leading vehicle. The longitudinal compression of about 40 cm and 28 cm fracture on side wall appear at the II end collision with the third vehicle. The automatic coupler and semi-permanent coupler involved in the accident are partially collapsed, managing certain level of energy absorption.
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