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ULSAB-AVC모델의 경량화 및 충돌성능을 고려한 설계 가이드라인 개발
배기현(Gihyun Bae),허훈(Hoon Huh),임지호(Jiho Lim),김교성(Gyosung Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
This paper deals with a method to construct a design guideline for the weight reduction and crashworthiness enhancement of an auto-body. To construct a design guideline, a crashworthiness index is newly suggested by considering the crashworthiness sensitivity based on the amount of the energy absorption, the dynamic material properties and the volume of parts. A design guideline is constructed in the side impact condition using the ULSAB-AVC model. Significant parts in the side impact condition are selected based on the amount of the energy absorption during the car crash. According to the change of the material, the thickness and the cross-sectional area of selected parts, the crashworthiness index is calculated and assessment items are measured from crash simulations. A regression analysis is performed to approximate prediction equations of assessment items according to the crashworthiness index. Prediction equations constructed can provide the quantitative crashworthiness of an auto-body without the crash simulation. Therefore, prediction equations can be utilized effectively as a design guideline for the weight reduction and the crashworthiness enhancement of an auto-body.