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Journal Article

Citation

Duan TL, He YW, Li Z, Yang F, Li L, Qu YQ. Fa Yi Xue Za Zhi 2019; 35(4): 440-443.

Affiliation

School of Forensic Medicine, Kunming Medical University, Kunming 650500, China.

Copyright

(Copyright © 2019, Si fa bu Si fa jian ding ke xue ji shu yan jiu suo)

DOI

10.12116/j.issn.1004-5619.2019.04.012

PMID

31532154

Abstract

OBJECTIVE To discuss the application value of vehicle-pedestrian collision road traffic accidents reconstruction based on PC-Crash software in forensic identification.

METHODS A case of vehicle-pedestrian collision was chosen based on a tachograph, then PC-Crash software was applied to construct a vehicle-pedestrian collision model, and reconstruct the vehicle-pedestrian collision road traffic accident. Finally, the process of vehicle-pedestrian collision was reproduced.

RESULTS In accident reconstruction, when the car speed was lower than 50km/h, the landing point of the pedestrian after collision was in the front of the car. When the car speed was higher than 50 km/h, after collision, the pedestrian flipped towards the car roof and landed behind the car. With the increase of vehicle speed, throwing distance of the pedestrian increased continuously. When the vehicle collision speed reached 60 km/h, the experimental results in this case were basically consistent with the actual situation of the case. Head acceleration of the pedestrian was at the maximum （1 655.70 m/s2） at 0.080 s. Chest acceleration of the pedestrian increased from 597.63 m/s2 to the peak 675.52 m/s2 at 0.055-0.060 s. Tibia acceleration of the pedestrian increased from 759.26 m/s2 to the first peak 1 367.06 m/s2, then reached the maximum speed （1 718.19 m/s2） at 1.225 s.

CONCLUSION The process of vehicle-pedestrian collision road traffic accidents can be reconstructed based on PC-Crash software under a situation of limited conditions, and can further clarify the speed of the vehicle, the location and degree of human body injury as well as the mechanism of damage of the pedestrian in the accident. Therefore, PC-Crash software has a certain practical value in forensic identification of road traffic accidents.

Copyright© by the Editorial Department of Journal of Forensic Medicine.


Language: zh


题目: 基于PC-Crash软件的人-车碰撞道路交通事故重建.


Language: zh


摘要: 目的 探讨基于PC-Crash软件的人-车碰撞道路交通事故重建在法医学鉴定中的应用价值。 方法 选取基于行车记录仪下的人-车碰撞案例，应用PC-Crash软件建立人-车碰撞模型，重建人-车碰撞道路交通事故，再现车辆与行人碰撞过程。 结果 事故重建中，当车速低于50 km/h时，行人碰撞后着地点位于车辆前方；当车速大于50 km/h时，行人碰撞后向车顶翻转，落于车后方。随着车辆行驶速度不断提高，行人的抛距不断增加。当车辆碰撞速度为60 km/h时，本例实验结果与案件实际情况基本吻合。在0.080 s时，行人头部加速度最大，为1 655.70 m/s2；在0.055~0.060 s时，行人胸部加速度从597.63 m/s2升至峰值675.52 m/s2；在0.020~0.030 s时，胫骨加速度从759.26 m/s2升至1 367.06 m/s2，达到第一个高峰，在1.225 s时达到峰值，为1 718.19 m/s2。 结论 应用PC-Crash软件在现场条件有限的情况下能够重建人-车碰撞道路交通事故过程，可用于进一步阐释事故中车辆的车速及行人的损伤部位、程度及成伤机制，在道路交通事故法医学鉴定中具有一定的实用价值。.


Language: zh


关键词: 法医病理学；事故，交通；仿真实验；PC-Crash；成伤机制.


Language: zh

Keywords

forensic pathology; accidents, traffic; simulation experiment; PC-Crash; injury mechanism

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