基于拆单率在线零售商多仓商品分配优化模型及策略研究

发布时间：2018-06-08 01:44

本文选题：在线零售 + 运营管理　；参考：《华中科技大学》2015年硕士论文

【摘要】：拆单是指一张订单需由不同的配送中心来完成配送,或由一个或多个配送中心在不同时间段来完成配送。本文研究了在线零售商多个配送中心协同作业环境下,如何选择合适的仓库选品策略以降低拆单率,从而降低商家的配送成本,进而降低运营成本。本文首先回顾了传统仓储物流领域的研究热点,引出多仓商品分配及拆单问题。继而,归纳总结了订单被拆分的三个因素:品类拆单、数量拆单及标记拆单。在考虑总体不缺货情况下,建立了同时考虑品类与数量拆单的数学模型,分析证明了模型为NP难问题。接下来分析了国内某大型在线零售商的销售数据,在此基础上,改进热销品算法得到了环形算法。对仿真问题进行求解,以拆单率及配送中心的负荷平衡程度为评价指标,对比结果发现环形算法在两个方面表现均最优。参数灵敏度分析发现,在线零售商可以通过增加备货量来降低甚至消除数量拆单的影响。品类约束分析表明,在单仓商品品类较少时,品类拆单对总的拆单率影响更大;单仓商品品类较多时,数量拆单影响更大。最后,总结全文并指出下一步研究方向。
[Abstract]:Disassembly refers to the distribution of an order by different distribution centers, or by one or more distribution centers to complete distribution at different times. In this paper, we study how to select the appropriate warehouse selection strategy in order to reduce the cost of distribution and then reduce the cost of operation in the collaborative environment of multiple distribution centers of online retailers. Firstly, this paper reviews the research focus of traditional warehouse logistics, and leads to the issue of multi-warehouse commodity distribution and disassembly. Then, the paper summarizes the three factors that the order is split: category, quantity and label. In this paper, a mathematical model considering both category and quantity is established, and it is proved that the model is NP-hard problem. Then, the sales data of a large online retailer in China are analyzed, and the ring algorithm is obtained by improving the hot selling algorithm. The simulation problem is solved by taking the removal rate and the load balance degree of the distribution center as the evaluation index. The comparison results show that the ring algorithm is the best in both aspects. The parametric sensitivity analysis shows that online retailers can reduce or even eliminate the impact of quantity withdrawal by increasing stock volume. The category constraint analysis shows that when the number of goods in a single warehouse is less, the effect on the total removal rate is greater than that in the single warehouse, and the quantity is more important when there are more commodity categories in the single warehouse. Finally, the paper summarizes the full text and points out the next research direction.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP301.6;F274

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