六岁儿童乘员不同约束系统的保护效果分析

Q4 Engineering

International Journal of Vehicle Safety Pub Date : 2021-06-22 DOI:10.1504/ijvs.2021.10039020

Haiyan Li, Jian Li, Shijie Ruan, Shihai Cui, Lijuan He, Wenle Lv

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引用次数: 0

摘要

为了模拟正面碰撞中后排儿童乘员的损伤，使用先前验证的六岁儿童有限元（FE）模型加载ECE R44测试条件。通过由此产生的头部加速度、压力、脑组织Von Mises应力、脑组织剪切应力、颈部剪切力和轴向力、胸部和腹部压迫，比较六岁后座乘客在不同碰撞速度下对前向儿童座椅约束系统和助推器的保护效果。结果表明：当碰撞速度较低时，两种约束系统中儿童有限元模型的损伤准则差异不大，而随着碰撞速度的增加，儿童座椅约束系统对儿童的保护效果优于助推器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of protective effects on different restraint systems of the six-year-old child occupants

In order to simulate the injury of rear children occupants in the frontal impact, a previously validated six-year-old child Finite Element (FE) model was used to load ECE R44 testing conditions. Through the resultant head acceleration, pressure, brain tissue Von Mises stress, brain tissue shear stress, shear force and axial force of neck, compression of chest and abdomen to compare the protective effects of the six-year-old rear seat occupant on forward-facing child seat restraint system and booster in different collision speeds. The results indicate that: when the collision speed is low, there is little difference of the child FE model's injury criteria in the two restraint systems, while the protective effect of child seat restraint system to the children is better than booster with the increase of the collision speed.

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来源期刊

International Journal of Vehicle Safety Engineering-Automotive Engineering

CiteScore

0.30

自引率

0.00%

发文量

期刊介绍： The IJVS aims to provide a refereed and authoritative source of information in the field of vehicle safety design, research, and development. It serves applied scientists, engineers, policy makers and safety advocates with a platform to develop, promote, and coordinate the science, technology and practice of vehicle safety. IJVS also seeks to establish channels of communication between industry and academy, industry and government in the field of vehicle safety. IJVS is published quarterly. It covers the subjects of passive and active safety in road traffic as well as traffic related public health issues, from impact biomechanics to vehicle crashworthiness, and from crash avoidance to intelligent highway systems.