基于租买的海运冷藏空箱调运优化模型研究

发布时间：2018-06-30 05:51

本文选题：冷藏集装箱 + 空箱调运　；参考：《广西大学学报(自然科学版)》2017年02期

【摘要】：为了使海运冷藏集装箱空箱调运的净收益最大化,在提供免费用箱的情况下,考虑订单收益、运输费用、在途库存费用、违约赔偿费用、租箱费用及买箱费用等因素,建立基于租买的海运冷藏空箱调运优化模型。由于冷藏箱造价高,利用普通空箱调运模型求解易造成只租不买使买箱决策失去意义。为避免此情况,引入自有箱系数、实际自有箱量等参数来控制租、买箱量,设置租买决策优先级,保证合理买箱与资源利用。运用整数规划求解,经算例计算结果显示,应优先考虑买箱,在购箱4次达到最低自有箱量后才开始租箱,此临界点出现在第2天购箱40 TEU后。周期中租买决策同时存在保证了买箱决策的存在意义,说明设置自有箱系数和最低自有箱量是合理的,模型是有效的,可应用于日常空箱调运业务中提高收益和得到空箱调运方案。
[Abstract]:In order to maximize the net income of empty container transfer of sea refrigerated container, in the case of free use of container, the order income, transportation cost, in-transit inventory cost, compensation for breach of contract, rental charge and purchase cost are taken into account. An optimal model of shipping refrigerated empty container transportation based on hire purchase is established. Because of the high cost of freezer, it is easy to use the ordinary empty box transfer model to solve the problem that only rent and not buy makes the decision of buying box meaningless. In order to avoid this situation, the parameters such as the coefficient of self-owned box and the actual quantity of self-owned container are introduced to control the rent, buy the volume, set the priority of the rental purchase decision, and ensure the rational use of the box and resources. By using integer programming, the calculation results show that priority should be given to the purchase of boxes, and only after the minimum quantity of own-owned boxes is reached for 4 times, can we rent the boxes, and this critical point appears after the second day of buying boxes at 40 TEU. The existence of rent buying decision in the cycle ensures the existence significance of the buying box decision. It shows that it is reasonable to set up the self-owned box coefficient and the minimum owned box quantity, and the model is effective. It can be used in the daily empty container transportation business to increase the income and get the empty box transfer scheme.
【作者单位】：上海海事大学物流研究中心;
【基金】：国家自然科学基金资助项目(71301045,71571117) 上海市基础研究重点项目(15590501800) 上海市科学技术委员会工程中心能力提升项目(14DZ2280200)
【分类号】：U695.22

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