Study on the Influence of Seat Adjustment on Occupant Head Injury Based on MADYMO

Abstract

Occupant head protection is very important in frontal impact. In this paper, a restraint system model was built with Hybrid Ⅲ 50% dummy in MADYMO, and then the parameters of belt and airbag were adjusted to consummate the model. Then the effects of different seat longitudinal position and seatback angle on driver's head injury were analyzed. The level of occupant head injury was estimated with head acceleration peak value and HIC. The simulation results indicated that seat adjustment had obvious effects on occupant head protection. Over moving of seat longitudinal position and seat back angle could cause visible injury of occupant head, while an appropriate position enhanced the protection.