需求依赖当前库存水平的易腐品库存运输联合优化

发布时间：2018-06-19 22:25

本文选题：易腐品 + 需求依赖库存　；参考：《上海交通大学》2014年硕士论文

【摘要】：饮食安全和物流成本急剧上升的问题已经受到了广泛关注，如何更有效、快捷的将易腐产品（如水果、蔬菜、鲜肉制品、豆制品等）送至百姓的手中，已经成为广大易腐产品生产商、供应商、零售商和学者们所关注的重要课题。有效、快捷的供应链系统需要链条上各节点企业共同交互信息、集中优化决策。在充分认识现实问题的基础上，学者们对易腐产品的库存决策、库存路径优化、车辆路径优化研究及生产-分销物流系统等方面的问题进行了深入的研究。但是少有学者在需求依赖当前库存水平这一条件下整合优化零售商的库存和运输策略，本课题针对这一课题，从零售商收益及系统成本的角度进行了研究，具体包括以下问题。（1）研究了需求依赖库存的易腐品订货及货架补货策略问题。以单一易腐品为研究对象，通过考虑零售货架空间有限和商品在零售商仓库及货架腐败速率的差异，建立模型并分析了零售商如何寻求最优订货策略和补货策略的问题。最后通过算例分析了不同参数变化对零售商决策的影响。（2）研究了考虑多回路配送的易腐品库存路径联合优化问题。构建一个供应商和多个零售商的二级供应链系统，，在优化模型中考虑了在途运输的产品腐败成本及车辆周期配送行驶多个回路以优化车辆使用效率的问题，在无限计划期内制定合理的配送方案以将车辆固定成本、装卸费用、行驶费用、库存成本和腐败成本之和最小化，最终确定所需车辆数目、车辆的行驶路径和配送的周期时间，并通过算例分析了不同环节腐败的影响。
[Abstract]:The problem of food safety and soaring logistics costs has received widespread attention. How to deliver perishable products (such as fruits, vegetables, fresh meat products, soy products, etc.) to the people more effectively and quickly, It has become an important issue for the manufacturers, suppliers, retailers and scholars of perishable products. An efficient and fast supply chain system requires the enterprises on the chain to interact with each other and to optimize the decision. On the basis of fully understanding the practical problems, scholars have carried out in-depth research on inventory decision, inventory path optimization, vehicle routing optimization and production-distribution logistics system of perishable products. However, few scholars integrate and optimize retailers' inventory and transportation strategies under the condition that demand depends on the current inventory level. Including the following questions. 1) this paper studies the ordering and shelf replenishment strategy of perishable goods which depend on the demand for stock. Taking a single perishable product as the research object, considering the difference between the limited retail shelf space and the rate of corruption of goods in the retail warehouse and shelf, the model is established and the problem of how retailers seek the optimal ordering strategy and replenishment strategy is analyzed. Finally, an example is given to analyze the influence of different parameters on retailers' decision. (2) the joint optimization problem of perishable inventory path considering multi-loop distribution is studied. A two-level supply chain system for suppliers and retailers is constructed. In the optimization model, the cost of product corruption in transit and the multiple loops of vehicle cycle distribution are considered in order to optimize the efficiency of vehicle use. Develop a reasonable distribution plan during the unlimited planning period to minimize the sum of fixed vehicle costs, handling costs, running costs, inventory costs and corruption costs, and finally determine the number of vehicles required, the vehicle's travel path, and the delivery cycle time, An example is given to analyze the influence of corruption in different links.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F274;F252

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