国産普通・小型乗用車の車体軽量化における適用材料の研究 : 第2報, 包絡解析法による次世代車体への適用材料の研究

抄録

In case of the substantial weight reduction of a passenger car, it is inevitable to reduce the weight of its body structure to a great extent. As the body structure has been rationalized by using computer alded engineering to a considerable extent, it will be necessary to switch the body material from steel to lightweight material. Aluminum, a typical one of the lightweight materials, having been said most suitable alternative, it hasn't been recognized to be one because of its economics. In this paper ; we show numerically that partial aluminumization of the steel body to 2% extent of the proposed vehicle weight is superior to steel one in customer satisfactory efficiency through the extensive use of Data Envelopment Analysis.