CAJ | 학술논문

以汽车座椅靠背为研究对象，利用材料力学原理分别设计3种不同截面形状的钢制座椅靠背圆钢管，基于Hyper Works有限元软件对3种方案进行静强度模拟分析，运用密度法对新型铝合金座椅骨架进行拓扑优化设计。结果表明：截面为椭圆型的钢管比等截面面积的圆形钢管具有更大的抗弯强度，拓扑优化是一种有效的结构概念设计方法，使铝合金座椅靠背质量减轻16．5％，从结构和材料2方面实现了汽车座精轻量化的目的。
이기차좌의고배위연구대상，이용재료역학원리분별설계3충불동절면형상적강제좌의고배원강관，기우Hyper Works유한원연건대3충방안진행정강도모의분석，운용밀도법대신형려합금좌의골가진행탁복우화설계。결과표명：절면위타원형적강관비등절면면적적원형강관구유경대적항만강도，탁복우화시일충유효적결구개념설계방법，사려합금좌의고배질량감경16．5％，종결구화재료2방면실현료기차좌정경양화적목적。
After analysing the original steel design of automotive seat back frame, three different sectional shapes of the seat back steel pipes are designed based on mechanics, of materials, and numerical calculations are carried out with finite element software HyperWorks. Topology optimization design of aluminum seat back is carried out using density method. The result shows that the linear static strength of elliptic section for steel tube is more than that of the round section with same area, topology optimization is a kind of effective method of structure design. The weight of aluminium alloy seat back reduces 16.5%, realizing the purpose of automotive seat lightweight from two aspects of structure and material.