儿童安全座椅中填充吸能泡沫对头部的保护效果分析*

doi:10.19562/j.chinasae.qcgc.2020.02.013

Abstract

Abstract: The deceleration curve, as a provision in regulation ECE R129, is applied on a validated 6-year-old child finite element model to simulate the head injury of rear-row child occupant in a side crash incident of vehicle by using software Pam-Crash. The child head protection effects of energy-absorbing foam blocks filled in the head-rest of the side wing of safety seat in a side impact are studied in terms of a series of indicators including the resultant acceleration of head mass center, head performance criterion, the Von Mises stress of brain tissue, intracranial pressure, shear stress and the contact force between foam and head. The results indicate that the foam filled in child safety seat can effectively reduce head injury in side impact, and in which the protective effect of PU foam is better than that of EPS foam

Key words: child safety seat, energy-absorbing foam, side impact, head injury

Li Haiyan, Li Jian, Cui Shihai, He Lijuan, Ruan Shijie, Lü Wenle. Analysis on Child-head Protection Effects of Energy-absorbing Foam Filled in Safety Seat[J].Automotive Engineering, 2020, 42(2): 228-233.

References

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Analysis on Child-head Protection Effects of Energy-absorbing Foam Filled in Safety Seat

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