中国体征第五百分位女性汽车乘员损伤仿生模型开发及验证

doi:10.19562/j.chinasae.qcgc.2023.10.017

Abstract

Abstract:

For the research on intelligent vehicle safety and digital assessment technology in the future， in order to effectively predict and evaluate the kinematic responses， biomechanical responses and injury mechanisms of the small size female in traffic accidents， an injury biomimetic model of the 5^th percentile Chinese female physiological characteristics is developed with independent intellectual property based on CT images of a volunteer， named TUST IBMs F05-O. Five groups blunt impact cadaver tests on the thorax and abdomen of small-sized female are reconstructed using four regional loading methods and the validity of the model is evaluated by the force-deflection curve and the biomechanical response data. At the same time， the simulation results from the whole-body model is compared with the results from the thoracic-abdominal partial model under the same loading conditions to analyze the influence of limbs on the stiffness responses of the chest and abdomen. The results show that for the five groups of cadaver tests with different impact velocity and mass， the predicted results by the model are consistent with the cadaver test data， proving the high bio-fidelity of the model. Therefore， it can be applied to the simulation calculation of the occupant protection test of automotive safety assessments in order to reduce the development cost. The thoracoabdominal stiffness of the whole-body model is slightly larger than that of the thoracic-abdominal partial model because of the influence of limbs kinematic responses， which proves that the whole-body model is more accurate to simulate and evaluate the injury than the partial model. The TUST IBMs F05-O can predict and assess quantitatively the injury of human tissues and organs to study the injury mechanisms of small size female occupants with Chinese physical characteristics， which can provide basic data and technical support for vehicle digital assessment technology， vehicle active and passive safety integration research and the development of the intelligent vehicle cockpit safety protection devices.

Key words: Chinese 5th percentile female, occupant, injury biomimetic model, biomechanical response, injury mechanism

Haiyan Li,Jing Hu,Lijuan He,Linghua Ran,Lü Wenle,Shihai Cui,Shijie Ruan. Development and Validation of an Injury Biomimetic Model of 5^th Percentile Female Occupant Exhibiting Chinese Anthropometry[J].Automotive Engineering, 2023, 45(10): 1965-1974.

Figures/Tables 10

References 33

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尸体信息					冲击条件		胸腹部响应			文献
加载条件	试验编号	年龄	身高/cm	体质量/kg	质量/kg	速度/（m·s^-1）	最大接触力/kN	最大压缩量/mm	肋骨骨折（NRF）	文献
胸部正面撞锤冲击	30FF	52	156	40.8	1.59	13.23	4.57	55.9	3处	Kroell 等（1971，1974）^［22-23］
胸部侧面撞锤冲击	29	52	157	53.1	23.40	5.20	2.87	91.0	无	Vinao 等（1989）^［24］
胸部侧面撞锤冲击	33	52	157	53.1	23.40	9.70	5.87	151.0	5处	Vinao 等（1989）^［24］
腹部正面棒击	19	43	159	53.1	31.24	5.00	2.46	135.6		Cavanaugh 等（1986）^［25］
腹部侧面撞锤冲击	30	52	157	53.1	23.40	6.10	3.20	100.0		Vinao 等（1989）^［24］

试验	胸部正面撞锤冲击试验		胸部右侧面撞锤冲击试验（5.2 m/s）		胸部左侧面撞锤冲击试验（9.7 m/s）		腹部正面棒击冲击试验		腹部侧面撞锤冲击试验
试验	最大接触力/kN	最大压缩量/mm	最大接触力/kN	最大压缩量/mm	最大接触力/kN	最大压缩量/mm	最大接触力/kN	最大压缩量/mm	最大接触力/kN	最大压缩量/mm
尸体试验	4.57	55.9	2.87	91.0	5.87	151.0	2.46	135.6	3.20	100.0
验证试验	4.27	48.0	2.96	88.0	5.74	145.0	2.62	124.0	3.08	97.0
相差	6.5%	14.2%	3.5%	3.2%	2.2%	4.0%	6.5%	8.5%	3.7%	3.0%

胸部验证试验	阈值	左肺	右肺	心脏	右肾	左肾	肝脏
胸部验证试验	阈值	28.4%	28.4%	30.0%	30.0%	30.0%	30.0%
胸部正面撞锤冲击试验	仿真结果	32.3%	34.3%	25.3%	8.8%	6.5%	25.2%
胸部右侧面撞锤冲击试验（5.2 m/s）		7.6%	17.4%	5.1%	15.9%	18.9%	23.1%
胸部左侧面撞锤冲击试验（9.7 m/s）		31.8%	28.0%	26.1%	9.3%	11.7%	28.1%
腹部验证试验	阈值	小肠	大肠	胃	左肾	右肾	肝脏
腹部验证试验	阈值	130.0%	130.0%	130.0%	30.0%	30.0%	30.0%
正面棒击冲击试验	仿真结果	97.6%	35.8%	22.3%	16.9%	9.2%	15.5%
侧面撞锤冲击试验	仿真结果	52.3%	34.7%	43.2%	12.0%	9.9%	26.4%

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Development and Validation of an Injury Biomimetic Model of 5^th Percentile Female Occupant Exhibiting Chinese Anthropometry

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