【摘要】 运用统计软件SPSS13.0对统计数据进行曲线拟合,根据拟合曲线确定出实载率与单耗的关系模型,并通过模型分析了实载率变化对运输车辆单耗的影响。分析结果表明,实载率在比较低的区间时,提高实载率对单耗的影响比较大;在实载率比较高的区间,提高实载率对单耗的影响比较小;总体上,单耗下降的比例要比实载率提高的比例大。更多还原

【Abstract】 The curve fit of statistic data is conducted by using statistic software SPSS13.0 in the paper,and the relation model between actual loading rate and unit consumption is established based on the fitted curves.The impacts of actual loading rate change on vehicle unit consumption are also analyzed with this model and the analysis results show that actual loading rate has bigger impact on unit consumption when it is in lower interval;and has smaller impact when in higher interval;as a whole,proportion of unit consumption reduction is more than that of actual loading rate increase.更多还原