Based on THUMS digital human model,this paper studied the occupant injury characteristics of rear attitude frontal collision in a large tilt seat and discussed the mechanism of occupant injury.As the result shows,compared with regular sitting posture,on the one hand,the traditional restraint system cannot realize the effective restraint on the occupant under the reclining posture,which easily causes injury of occupant's abdomen,thorax and neck due to descending of occupant.On the other hand,the occupant's spine is subjected to a large axial acceleration load,and there is a risk of injury due to the seat cushion.Finally,based on the characteristics and mechanism of occupant injury,the paper also discussed the strategies on occupant protection in a large seat.
关键词
乘员保护/大倾角座椅/数字人体模型/损伤机理
Key words
Occupant protection/High tilt seat/Digital human body model/Damage mechanism
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