Research on the Risk of Child Occupant Injury Based on Offset Impact

In order to analyze the movement and damage risk of the children in the vehicle offset impact. The paper adopts Q3 dummy and two kinds of child restraint system (5-point harness type, impact shield type CRS) FE model. Based on the acceleration and angel from the crash conditions about frontal impact in 25%, 40% and full overlap, the numerical analysis sled crash models are established. The results show that in the above 3 cases, there are obvious differences between the kinematic response and the injury of the children. Under three conditions, the upper neck injury of child occupant who under the protection of two types CRS are exceeding the specified value 1705N, under the protection of 5-point-harness CRS, the influence of the offset impact on the child occupant injury is greater than that of front 100% overlap rigid barrier impact, under the protection of front impact shield CRS, the result is vice versa. Research shows that, in order to deal with the complex traffic accidents, the design of CRS should consider the influence of offset impact, and also provide a reference for the development of CRS regulation and the research of CRS in the future.