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首页> 外文期刊>Accident Analysis & Prevention >Injury potential of a three-year-old Hybrid III dummy in forward and rearward facing positions under CMVSS 208 testing conditions.
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Injury potential of a three-year-old Hybrid III dummy in forward and rearward facing positions under CMVSS 208 testing conditions.

机译：在CMVSS 208测试条件下，面向前和向后位置的三岁混合动力III假人的伤害潜力。

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摘要

This research focuses on the injury potential of children in forward and rearward facing child restraint seats in frontal collisions. Vehicle crash tests were completed following the guidelines outlined in the Canadian Motor Vehicle Safety Standard 208 using a Hybrid III three-year-old dummy in a convertible forward/rearward facing child restraint seat. The seat was equipped with a five-point restraining system and the experimental test was completed in the forward facing configuration. A numerical model employing a similar set-up as the experimental crash test was developed and numerically simulated using LS-DYNA. To verify the numerical simulations, the head and chest accelerations as well as neck loads and moments were compared to the experimental findings and it was observed that a reasonable correlation between the experimental and numerical observations existed. Further numerical simulations were completed to investigate the influence of positioning the three-year-old dummy in the rearward configuration on the head and neck injury potential during frontal crash. Through an analysis of injury criteria, using neck loads and head accelerations, it was observed that the rearward facing child dummy sustained significantly lower levels of neck injury criteria while exhibiting similar levels of the head injury criteria as the forward facing child dummy.
机译：这项研究侧重于正面碰撞中向前和向后的儿童约束座椅中儿童的伤害潜力。根据加拿大机动车安全标准208概述的准则，使用可折叠的向前/向后儿童约束座椅上的三岁混合动力III型假人完成了车辆碰撞测试。座椅配备了五点约束系统，并且在面向前方的配置下完成了实验测试。开发了采用与实验碰撞测试相似的设置的数值模型，并使用LS-DYNA进行了数值模拟。为了验证数值模拟，将头部和胸部的加速度以及颈部负荷和力矩与实验结果进行了比较，并且观察到实验和数值观察之间存在合理的相关性。完成了进一步的数值模拟，以研究将三岁大的假人以向后的姿势放置对额头碰撞期间头部和颈部受伤的可能性的影响。通过使用颈部载荷和头部加速度对伤害标准进行分析，可以观察到面向后方的儿童假人承受的颈部伤害标准水平明显较低，而头部伤害标准的水平与面向前的儿童假人相似。

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