摘要
随着人们生活水平的提高,生鲜食品的新鲜度越来越受到重视,这就对生鲜食品冷链物流的配送提出了更高要求。因此,在现有第3方冷链物流配送路径优化研究的基础上,建立新的成本和约束模型,并给出采用模拟退火算法的优化方法。模型考虑了车辆行驶速度和载重量对运输能耗的影响,区分了车辆在途和装卸阶段的制冷能耗,用指数函数而不是常数来刻画食品的变质速率,运用模拟退火算法对算例进行求解。结果表明,更全面地考虑上述因素得到的配送路径与现有文献中给出的路径明显不同,前者的总成本可以减少约11%。
引文
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