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이재원(Jayone Lee),이성범(Seongbeom Lee),예수해(Soohae Ye) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Seat belt is the most fundamental safety device to protect passenger’s life from a clash or collision accident of vehicle. The role of seat belt system is preventing passenger from shock and getting out when the vehicle stops suddenly or turns over. Seat belt system consists of mainly four restraining parts: D-ring, buckle, anchorage, and retractor. Retractor is the major part which controls spool-in or out of webbing according to acceleration pulse in seat belt. Currently, spool of automotive seat belt is made of Al-alloy due to its light weight. In this paper, we performed solid model of spool using 3D scanner and CATIA V5. Moreover, for optimization of spool, we performed finite element analysis under various load between webbing and spool. In conclusion, we obtained optimized shape of automotive spool, and predicted fractural of spool through the result values of structural analysis.