CAJ | 학술논문

为满足节能与环保的需要，汽车轻量化是一个重要解决方案。该文探讨应用镁合金代替钢作为座椅骨架的可行性，以便改善其强度，并保持其低密度和较高吸振能力。进行原型座椅的台车后碰撞实验和LS—DYNA的有限元仿真计算，应用Taguchi方法进行三水平正交数值试验，进行了应力分布、加速度等参数的敏感性分析。通过仿真计算与灵敏度分析，得到了影响应力水平的主要设计变量；得到了一款最佳化的镁合金座椅骨架结构设计。结果表明：与常规钢座椅骨架相比较，使用该方法的质量节省可达40％。
위만족절능여배보적수요，기차경양화시일개중요해결방안。해문탐토응용미합금대체강작위좌의골가적가행성，이편개선기강도，병보지기저밀도화교고흡진능력。진행원형좌의적태차후팽당실험화LS—DYNA적유한원방진계산，응용Taguchi방법진행삼수평정교수치시험，진행료응력분포、가속도등삼수적민감성분석。통과방진계산여령민도분석，득도료영향응력수평적주요설계변량；득도료일관최가화적미합금좌의골가결구설계。결과표명：여상규강좌의골가상비교，사용해방법적질량절성가체40％。
To minimize vehicle mass is an important selection for energy safe and eco-friendly vehicles to reduce environmental pollution. This paper investigates the design and feasibility of a magnesium alloy seat frame (MASF) to substitute the existing steel seat frame and improve the seat frame strength while maintaining the advantages of lower density and higher vibration absorption properties. Sensitivity analysis of MASF parameters, including stress distribution and acceleration, was made using the finite element (FE) analysis. An optimization design for MASF in a rear crash test was obtained using a three-level orthogonal array approach of the Taguchi design matrix, as well as through the correlation of a prototype magnesium seat and an LS-DYNA simulation. The results show that 40% of mass reduction can be achieved using this approach compared with using a conventional steel seat structure.