열차충돌사고시 승객거동 및 상해평가를 위한 시뮬레이션기법 연구

초록

Since there is no a restraint system such as seat belt or air-bag in the train, occupants are injured by bumping against front seat or interior structures. Therefore front seat has to protect the occupant from impact. Generally, sled test is widely used as one of the methods to evaluate the collision condition. Because it spends a lot of cost and time, computer simulation is adopted to reduce the number of sled tests in development stage. In this paper, we study on the simulation technique for occupant behavior and injury evaluation in train collision accident. To make reliable simulation model, material properties and boundary condition used in previous study6) were improved. Using the revised model, a computer analysis was performed in order to find dummy's injury values and part of accelerations. And also, the results of the analysis were compared with those of the sled test.

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