Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (6): 1264-1272.doi: 10.13229/j.cnki.jdxbgxb20210068

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Comparison of injuries in front impact between Hybird III dummy model and CHUBM human biomechanical model

Xiong LI1,2(),Feng-chong LAN1,2,Ji-qing CHEN1,2(),Fang TONG1,2   

  1. 1.School of Mechanical and Automotive Engineering，South China University of Technology，Guangzhou 510640，China
    2.Guangdong Provincial Key Laboratory of Automotive Engineering，South China University of Technology，Guangzhou 510640，China
  • Received:2021-01-22 Online:2022-06-01 Published:2022-06-02
  • Contact: Ji-qing CHEN E-mail:lixiong1008@163.com;chjq@scut.edu.cn

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Abstract:

First， the Hybird III dummy and CHUBM human were used to build 50 km/h frontal 100% rigid barrier virtual collision simulation platform to conduct preliminary exploratory study. Then，three finite element models of the vehicle collision were established under the Hybird III dummy seat position A and CHUBM human seat position A and B. And three cases under the driver's head， chest and thigh injuries were compared by analysis in simulation. The results showed that Hybird III dummy of seat position A and CHUBM human of seat position B had a good consistency in the dynamic response. The head and chest injuries of CHUBM human under different seat positions were higher than Hybird III dummy. The injury indicators of CHUBM human at seat position A were higher than that at seat position B， and the fracture of human ribs was occurred. The research results show that the CHUBM human has more realistic human anatomy and bionic fidelity， and has higher requirements for the safety evaluation of vehicle restraint systems， which can provide corresponding reference for the safety protection design of vehicle.

Key words: vehicle engineering, CHUBM human model, Hybird III dummy model, vehicle collision, injury comparison

CLC Number: 

  • U461.91

Fig.1

Hybird III dummy and CHUBMhuman finite element model"

Fig.2

Establishment of the vehicle collision finite lement model （partial view）"

Fig.3

Comparison of dynamic response of vehicle collision"

Fig.4

Comparison of human dynamic response of cab restraint system"

Fig.5

Seatbelt shoulder force of tension"

Fig.6

Seatbelt abdomen force of tension"

Fig.7

Comparison of head resultant acceleration curve"

Table 1

Comparison of head injury parameters"

指标Model 1Model 2Model 3
HIC36736.91926.951203.36
Acc_max/g73.6180.8188.21
Acc_3 ms/g72.1278.2484.01

Fig.8

Comparison of chest compression"

Table 2

Comparison of chest injury parameters"

指标Model 1Model 2Model 3
C_max/mm324653
VC_max0.1680.3900.428

Fig.9

Comparative analysis of axialforce on driver’s thigh"

Table 3

Comparison of femur compression peak force"

指标Model 1Model 2Model 3
右侧股骨压缩力/kN1.6380.4120.693
左侧股骨压缩力/kN1.7620.2640.450

Fig.10

Comparison of Hybird III dummy and CHUBM human knee structure"

Fig.11

CHUBM human rib stress cloud at different seat position"

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