面向车内布局参数影响的侧面碰撞远端乘员损伤特征分析OA

In far-side impacts,the main cause of occupant injury is direct contact with the cockpit interior.In this study,an occupant-cockpit coupled model for three different vehicle layouts was established based on the THUMS occupant model.Then the kinematics and injury responses of the far-side occupant's head,chest and abdomen were comparatively analyzed under 90° lateral and 60° oblique side-impact conditions.The results show that the cockpit layout has a crucial impact on the kinematics and injuries of the far-side occupant.Under both impact conditions,occupants in the Camry and Explorer models,where the gap between the center console and the seat is larger,experience greater lateral head and chest displacements than those in the Yaris model with a smaller gap.In addition,the Z-direction displacement of the far-side occupant's head and chest is significantly negatively correlated with the height of the center console.Regarding occupant injury,the Explorer model produces the highest head and T1 accelerations under both working conditions.Moreover,rib strains for the far-side occupant in the Yaris and Explorer models range from 0.03 to 0.08,indicating a risk of fracture.This risk concentrates on the right 9th to 11th ribs,where the occupant's chest and abdomen make lateral contact with the center console.