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1報, 国産普通・小型乗用車の軽量化進行度の予測手法

抄録

The concept of vehicle specific gravity has been employed as an indicator for measuring the progress achieved in reducing the weight of transportation equipment. In this paper, to estimate the vehicle specific gravity for 1997 Japanese midsize and compact passenger car, the weight percents of the 22 materials making up the 1997 car are estimated by not only approximate function analysis based on the method of least squares and weight percents of the 22 materials making up from the 1973 to the 1992 cars, but also the trend analysis peculiar to the domestic passenger car. The results show that the weighted average of coefficient of relative correlation depending on 22 approximate functions is 0.96 and the error between an estimated and actual vehicle specific gravity is about 1.3 percent.