汽车工程 ›› 2022, Vol. 44 ›› Issue (12): 1944-1953.doi: 10.19562/j.chinasae.qcgc.2022.12.016

所属专题: 车身设计&轻量化&安全专题2022年

• • 上一篇    下一篇

中国体征3岁儿童乘员损伤仿生模型在C-NCAP正面碰撞测试仿真中的应用

李海岩1(),苏航杰1,祝贺2,刘冲2,王彦鑫1,崔世海1,贺丽娟1,王一达1,吕文乐1   

  1. 1.天津科技大学,现代汽车安全技术国际联合研究中心,天津  300222
    2.吉利汽车研究院(宁波)有限公司,宁波  315336
  • 收稿日期:2022-06-13 修回日期:2022-07-10 出版日期:2022-12-25 发布日期:2022-12-22
  • 通讯作者: 李海岩 E-mail:lihaiyan@tust.edu.cn
  • 基金资助:
    国家自然科学基金(81471274)

The Application of the Injury Bionic Model of Chinese Three-year-old Child Occupant to the Simulation of C-NCAP Frontal Crash Tests

Haiyan Li1(),Hangjie Su1,He Zhu2,Chong Liu2,Yanxin Wang1,Shihai Cui1,Lijuan He1,Yida Wang1,Lü Wenle1   

  1. 1.Tianjin University of Science and Technology,International Research Association on Emerging Automotive Safety Technology,Tianjin  300222
    2.Geely Automobile Research Institute (Ningbo) Co. ,Ltd. ,Ningbo  315336
  • Received:2022-06-13 Revised:2022-07-10 Online:2022-12-25 Published:2022-12-22
  • Contact: Haiyan Li E-mail:lihaiyan@tust.edu.cn

摘要:

本文中应用已验证的具有详细解剖学结构特征的中国3岁儿童乘员图斯特损伤仿生模型(TUST IBMs 3YO-O),参照C-NCAP(2021年版)两种正面碰撞乘员保护动态试验,建立仿真模型。通过分析3岁儿童乘员在不同工况下的头部、颈部、胸部的运动学和生物力学响应,研究正面碰撞测评试验中3岁儿童乘员的损伤机理和不同工况下损伤的差异。结果表明:在运动学响应方面,与正面100%重叠刚性壁障(FRB)碰撞试验相比,3岁儿童乘员在正面50%重叠移动渐进变形壁障(MPDB)碰撞试验中损伤风险更大,且远离碰撞侧的儿童损伤更严重;在生物力学响应方面,FRB碰撞中,3岁儿童乘员头部下颌与胸部接触可能出现轻微脑震荡。MPDB碰撞中,儿童出现向左的横向运动,头部下颌与右侧胸部接触,导致生物力学响应峰值较大,可能出现轻微脑震荡、肋骨骨折、肺部挫伤等损伤。

关键词: C-NCAP, 正面碰撞, 儿童乘员, 损伤机理, 生物力学响应

Abstract:

In this paper, the validated TUST injury bionic model of Chinese three-year-old child occupant (TUST IBMs 3YO-O) with detailed anatomical structure features is used to build a simulation model, according to two dynamic frontal crash test specifications specified in C-NCAP (2001 version). A simulation is conducted to analyze the kinematic and biomechanical responses of the head, neck and chest and study the injury mechanism and the injury discrepancy of three-year-old child occupant in different conditions during frontal crash evaluation test. The results show that in the aspect of kinematic response, the injury risk of three-year-old child occupant in the frontal 50% overlap mobile progressive deformable barrier (MPDB) crash test is higher than that in the frontal 100% overlap rigid barrier (FRB) crash test, and the child farther away from the impact point has more serious injuries. In the aspect of biomechanical response, the three-year-old child occupant may suffer a mild concussion due to the lower jaw contacting the chest in the FRB crash test, while in the MPDB crash test, the child moves transversely toward left with the lower jaw contacting the right side of chest, leading to a larger peak biomechanical response, and may inducing minor concussion, rib fracture, lung contusion and other injuries.

Key words: C-NCAP, frontal crash, child occupant, injury mechanisms, biomechanical response