相关需求下带紧急供应商的两阶段报童模型研究

发布时间：2018-02-28 07:11

本文关键词： 动态规划紧急供应商部分缺货回补报童模型随机需求需求相关　出处：《曲阜师范大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着经济全球化和信息技术的快速发展，企业所处的竞争环境发生了根本性的变化，市场竞争由原来的产品价格、质量等传统因素的竞争转向了时间、品牌等因素的竞争，由单个企业之间的竞争转向了供应链之间的竞争。供应链管理已成为一种新的库存管理理念和方法。本文考虑一个由供应商、零售商组成的二级供应链库存系统，其中供应商有两种类型：普通供应商和紧急供应商。在两阶段需求相关的报童模型框架下，研究零售商的最优订货策略，建立了两阶段动态规划模型。第一章介绍了库存管理问题、报童模型、紧急供应商问题与一些预备知识，并介绍了本文的主要研究内容。第二章，研究含紧急供应商的两阶段需求相关的报童模型，零售商在第一阶段发生缺货时有一次紧急补货机会。通过对零售商在两个阶段内的利润分析，建立了动态规划模型，并给出了模型求解的算法。最后，，结合数值算例验证了算法的有效性，在灵敏度分析部分给出了需求相关系数对零售商订货决策与利润的影响。第三章，在允许部分缺货回补和有紧急供应商的条件下，对有相关需求的两阶段报童模型进行研究。零售商在第一阶段发生缺货时面临两种补货策略：部分缺货回补和紧急补货策略。针对不同的补货策略，分别对零售商在两个阶段内的利润进行分析，建立了求解零售商最优订货策略的动态规划模型，并给出了模型求解的算法。最后，给出数值算例，并通过灵敏度分析得出各参数对零售商订货决策的影响。
[Abstract]:With the rapid development of economic globalization and information technology, the competitive environment in which enterprises are located has undergone fundamental changes. The competition in the market has changed from the traditional factors such as product price and quality to those of time and brand. From competition among individual enterprises to competition between supply chains, supply chain management has become a new concept and method of inventory management. In this paper, we consider a two-stage supply chain inventory system composed of suppliers and retailers, in which there are two types of suppliers: ordinary suppliers and emergency suppliers. The optimal ordering strategy of retailers is studied and a two-stage dynamic programming model is established. The first chapter introduces the inventory management problem, newsboy model, emergency supplier problem and some preparatory knowledge, and introduces the main research contents of this paper. In the second chapter, the paper studies the newsboy model related to the two-stage demand of the emergency supplier. The retailer has an emergency replenishment opportunity in the first stage, through the analysis of the retailer's profit in the two stages. The dynamic programming model is established and the algorithm for solving the model is given. Finally, the effectiveness of the algorithm is verified by numerical examples. In the sensitivity analysis part, the influence of demand correlation coefficient on the order decision and profit of retailers is given. Chapter III, under the conditions of allowing partial backfill and emergency suppliers, This paper studies the two-stage newsboy model with related requirements. Retailers face two restocking strategies when they are out of stock in the first stage: partial shortage replenishment and emergency replenishment strategy. Based on the analysis of the retailer's profit in two stages, the dynamic programming model for solving the retailer's optimal ordering policy is established, and the algorithm for solving the model is given. Finally, a numerical example is given. Through sensitivity analysis, the influence of each parameter on retailer order decision is obtained.
【学位授予单位】：曲阜师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F724.2;F274

【参考文献】