Characteristics on the active response of driver's hand on the human injury in vehicle crashes

doi:10.3969/j.issn.1674-8484.2023.05.003

Abstract

Abstract:

The active response of the driver's hand on the steering wheel in a vehicle crash environment and the effect on human injury were investigated to provide reference data for the improvement of human injury standards and the design of vehicle safety protection. The hand structure of the dummy was reconstructed so that the hand had the ability to grasp. Using the joint constraint moment to simulate the gripping force, researchers set up the simulation model of the hand with gripping force and different positions of the steering wheel, and calculated the damage values of each part of the dummy, and compared them with the damage of the standard dummy. The results show that in the gripping condition, the peak value of head injury criterion (HIC) increases by 37.5%, the maximum value of neck extension moment decreases by 22.3%, the maximum value of chest compression decreases by 3%, and the peak value of thigh compression force decreases by 36.5%. Dividing the steering wheel into positional azimuths of the dial, the peak head HIC is greatest when the hand position is in the 11 o'clock and 4 o'clock azimuth, and the peak chest compression and thigh compression forces are greatest when the hand position is in the 8 o'clock and 4 o'clock azimuth. The active response of the driver's hand in a collision is a major influence on human damage.

Key words: car collisions, Chinese physical dummies, active response of driver's hand, human injury, head injury criterion (HIC), chest compression, thigh compression force

CLC Number:

U467.14

YANG Xin, QIN Haoyi, MA Shuai, SONG Jiafeng, ZHU Yong, WANG Ruixiang, XU Shucai. Characteristics on the active response of driver's hand on the human injury in vehicle crashes[J]. Journal of Automotive Safety and Energy, 2023, 14(5): 544-554.

Figures/Tables 18

References 24

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手指部位	尺寸/ mm						转角/ （°）
手指部位	近指节长度	近指节直径	中指节长度	中指节直径	远指节长度	远指节直径	腕指关节	近指关节	中指关节	远指关节
拇指	23	28	26	20	35	17	0~90	0~60	—	0~100
食指	28	19	21	16	23	15	—	0~90	0~100	0~85
中指	30	20	26	18	23	17	—	0~90	0~100	0~85
无名指	26	18	24	17	24	16	—	0~90	0~100	0~85
小指	21	16	16	15	22	14	—	0~90	0~100	0~85

手指部位	尺寸/ mm						转角/ （°）
手指部位	近指节长度	近指节直径	中指节长度	中指节直径	远指节长度	远指节直径	腕指关节	近指关节	中指关节	远指关节
拇指	23	28	26	20	35	17	0~90	0~60	—	0~100
食指	28	19	21	16	23	15	—	0~90	0~100	0~85
中指	30	20	26	18	23	17	—	0~90	0~100	0~85
无名指	26	18	24	17	24	16	—	0~90	0~100	0~85
小指	21	16	16	15	22	14	—	0~90	0~100	0~85

手部抓握情况	D_x / mm		D_z / mm		F / kN		t / ms
手部抓握情况	头部	肩部	头部	肩部	肩部	肘部	头部与气囊	下肢与仪表盘
无	221.4	99.4	64.8	48.8	1.28	0.42	57.5	20.0
存在	132.2	57.1	39.1	54.6	0.90	0.83	47.5	22.5

手部抓握情况	D_x / mm		D_z / mm		F / kN		t / ms
手部抓握情况	头部	肩部	头部	肩部	肩部	肘部	头部与气囊	下肢与仪表盘
无	221.4	99.4	64.8	48.8	1.28	0.42	57.5	20.0
存在	132.2	57.1	39.1	54.6	0.90	0.83	47.5	22.5

假人姿态	HIC	a / g
存在抓握力	471.3	82.6
无抓握力	294.8	72.7
姿态1	514.0	84.2
姿态2	471.3	82.6
姿态3	473.7	86.3
姿态4	583.8	100.9