多种冷链产品的三级库存策略研究

发布时间：2018-01-20 14:58

本文关键词： 多种冷链产品联合补货多级库存微分方程非线性整数规划　出处：《烟台大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着居民生活水平的提高，人们对冷链食品的多样性和新鲜性的要求越来越高。为了满足消费者的需求，高效的冷链物流成为食品行业的关键环节，冷链产品需求的改变要求企业必须改善冷链物流运营条件和加强运营管理。我国冷链物流起步较晚，由于缺乏供应链管理理念、信息化程度较低，导致上下游企业无法有效衔接，上游企业对市场需求反应较慢，增加了食品的腐败和浪费。从目前冷链物流研究来看，国内外学者对供应链冷链库存策略的研究相对较少，并且研究中一般是考虑单一品种的冷链品。在现实生活中，单一品种的冷链产品订购情形已经不能满足实际的需要，在大多数情况下，分销商或零售商不会每次只采购一种冷链产品，而是采取多种冷链产品批量订购的形式订购。根据消费者需求和冷链产品的特性统筹安排产品的订购，以减少补货频率，降低相关费用。在有限期内，研究多种冷链产品的生产商、分销商和零售商的一体化库存补货策略问题，建立了多种冷链产品的三级库存模型，其中变质率、生产率为常数，需求率为随时间变化的函数。研究中，分销商（零售商）补货时采用联合补货策略，，用微分方程模型来描述各成员库存的变化。模型以系统利润最大化为目标函数，以每个参与者的利润非负为约束条件，通过该模型求解得到最佳的库存采购策略。最后给出算例，用LINGO软件求解最优策略。这为涉及采购多种冷链产品的供应链企业寻求最佳库存补货策略提供了科学依据。
[Abstract]:With the improvement of people's living standard, people demand more and more variety and freshness of cold-chain food. In order to meet the needs of consumers, efficient cold-chain logistics has become a key link in the food industry. The change of demand for cold chain products requires enterprises to improve the operating conditions of cold chain logistics and strengthen operational management. Cold chain logistics in China started late, because of the lack of supply chain management concept, the degree of information is low. Leading to the upstream and downstream enterprises can not effectively link up, upstream enterprises to the market demand response is slow, increased food corruption and waste. From the current cold-chain logistics research. Domestic and foreign scholars on the supply chain cold chain inventory strategy research is relatively few, and the research is generally considering a single variety of cold chain products. In real life. In most cases, distributors or retailers will not purchase only one cold chain product at a time. According to the demand of consumers and the characteristics of cold chain products, the ordering of products is arranged in order to reduce the frequency of replenishment and the related costs. Within a certain period of time, the integrated inventory restocking strategy of producers, distributors and retailers of various cold-chain products is studied, and the three-level inventory model of various cold-chain products is established, in which the deterioration rate and productivity are constant. The demand rate is a function of time change. In the study, the distributors (retailers) used the joint replenishment strategy. The differential equation model is used to describe the change of each member's inventory. The model takes the maximization of the system profit as the objective function and the non-negative profit of each participant as the constraint condition. The optimal inventory purchasing strategy is obtained by solving the model. Finally, an example is given. The LINGO software is used to solve the optimal strategy, which provides a scientific basis for the supply chain enterprises involved in purchasing a variety of cold chain products to seek the best inventory replenishment strategy.
【学位授予单位】：烟台大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：O227

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