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汽车安全与节能学报

汽车安全与节能学报 ›› 2015, Vol. 6 ›› Issue (04): 354-359.DOI: 10.3969/j.issn.1674-8484.2015.04.007

• 汽车安全 • 上一篇    下一篇

腹部塞块刚度对女性乘员损伤参数及下潜的影响

曹立波1,2，刘飞霞1,2，颜凌波1   

  1. 1. 湖南大学 汽车车身先进设计制造国家重点实验室，长沙 410082，中国
    . 汽车噪声振动和安全技术国家重点实验室，重庆 400023，中国
  • 收稿日期:2015-07-29 出版日期:2015-12-25 发布日期:2015-12-28
  • 作者简介:第一作者 / First author ： 曹立波(1964 － )，男( 汉)，湖南，教授。 E-mail: hdclb@163.com 第二作者 / Second author ： 刘飞霞(1989 － )，女( 汉)，湖南，硕士研究生。E-mail: feixia0915@163.com
  • 基金资助:

    国家“八六三”高技术研究发展计划资助项目(51275001)

Effects of abdomen block stiffness on female occupant injuries#br# and submarining trend

CAO Libo1,2, LIU Feixia1,2, YAN Lingbo1   

  1. 1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China； 2. State Key Laboratory of Vehicle Noise-Vibration-Harshness and Safety Technology, Chongqing 400023, China
  • Received:2015-07-29 Online:2015-12-25 Published:2015-12-28

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摘要：

乘员腹部损伤是汽车碰撞事故中常见的损伤类型，其中，5 百分位女性乘员身材较小，易发
生下潜。该文研究了腹部塞块刚度对女性乘员损伤参数以及下潜趋势的影响。基于有限元仿真软件
LS-DYNA，建立了混III 5 百分位女性假人与模拟实车全宽正面碰撞的台车仿真模型，使用单一变量
控制法。结果表明：腹部塞块刚度值在25% 内增大，乘员头部质心加速度峰值、15 ms 头部伤害允许
指标(HIC)、盆骨后转角峰值呈现上升趋势；腹部塞块刚度值在25% 内降低，乘员头部质心加速度峰
值、HIC15、盆骨后转角峰值也呈现不同程度的上升趋势。腹部塞块刚度对乘员胸部变形量和加速度
影响较小。因此，腹部塞块刚度值在标准刚度值的25% 内增大或减小，乘员损伤都在一定程度上增大，
下潜趋势增强。

关键词: 汽车安全, 全宽正面碰撞, 女性假人, 乘员损伤, 腹部塞块刚度, 有限元仿真

Abstract:

Occupant abdomen injury is a common injury in car crash, and 5-percentile female occupant is
prone to be submarining for her small stature. A frontal full width sled impact simulation model was built based
on finite element simulation software LS-DYNA with a Hybrid III 5th female dummy. A single control variable
method was used to investigate the effects of abdomen block stiffness on female occupant injuries and
submarining trend. The results show that the abdomen block stiffness had little influence on occupant chest
deformation and acceleration. While, the peak value of resultant acceleration, the value of 15-ms head injury
criterion (HIC15) and the peak value of pelvis rear rotation angle can rise when the value of abdomen block
stiffness increased in 25%; the peak value of resultant acceleration, the value of HIC15 and the peak value of
pelvis rear rotation angle can also rise when the value of abdomen block stiffness decreased in 25%. Therefore,injuries of female occupant can be increased to some extent, and the submarining trend can also be amplified
when the value of abdomen block stiffness is increased or decreased in 25%.

Key words: vehicle safety, frontal full width impact, female dummy, occupant injuries, abdomen block stiffness, finite element simulation