후방 추돌 안전도 해석을 위한 시트 유한 요소 모델링

Abstract

Car safety performance has been improved day by day. Neck injuries in rear-end collision accidents are still problems to be solved. Studies of frontal crash and side crash has been actively researched. However Study on the rear collision has not been actively researched. We expect the injury according to the dynamic behavior of the passengers and made the finite element model to provide the basic design data. We accomplished material property test for foam, padding foam, trim cover to make a seat model considered manufacturing. And we simulated the process of the trim cover surrounding the foam to apply pre-stress. We seated HRMD to check the H-point, seat back angle and backset before BioRIDⅡ seated in computer analysis program. We tested rear collision test according to Euro NCAP. We attached FSR sensor and accelerometer in headrestraint, seat back and seat cushion to check the seat pressure map, seat acceleration and dummy injury. We were compared test data and finite element model.