에어백 폴딩 재현 방법에 따른 비정상 착좌 해석에 대한 연구

There is an increasing pressure to reduce injuries by using airbags for out-of-position impact loading conditions. At the same time, numerical simulation requires accurate models applicable to the OOP (Out Of Position) loading cases. However, modeling folded airbags from the 3D CAD geometry is a very time consuming task. This paper investigates the effects of passenger airbag inflation characteristics in terms of airbag modeling technique. The following two tests were simulated with the airbag model. 1. Static airbag deployment in pendulum test 2. OOP Position, Low Risk Deployment test. These two tests were then compared to the simulation results. For OOP simulation, the directly folded mesh and scaling mesh airbag model showed satisfactory correlation, but the projection mesh was not suited to OOP modeling.