生鲜农产品冷链物流配送网络优化及仿真研究

发布时间：2018-05-08 17:52

本文选题：生鲜农产品 + 冷链物流网络　；参考：《苏州科技学院》2015年硕士论文

【摘要】：近年来,随着农业结构调整和居民消费水平的不断提高,我国生鲜农产品的产量和流通量逐年增加,而全社会对生鲜农产品品质和安全的关注也空前高涨,这就对生鲜农产品从产地至消费者手中的各流通环节提出了更高的管理控制要求。一般而言,有两个重要因素影响生鲜农产品流通过程中的质量安全:一个是温度因素,即流通过程中的生鲜农产品应储存于合适的温度环境;另外一个则是时间因素,生鲜农产品对时间具有较强敏感性,要尽可能减少运输配送过程所耗费的时间。本文针对生鲜农产品配送时效性强的特点,考虑诸多资源约束,在构建生鲜农产品配送网络的基础上,对生鲜农产品配送路径及配送中心作业效率问题进行优化与仿真研究,这对于减少生鲜农产品的配送时间和配送费用,提高生鲜农产品配送效率,最大限度保证农产品的新鲜度具有重要的意义。合理的生鲜农产品配送网络是提高配送效率的关键,研究根据生鲜农产品易腐、保质期短等特性,综合考虑成本、经济环境及基础设施等因素的基础上,应用多目标规划方法,建立了生鲜农产品配送中心多目标选址模型并用算例进行验证,在此基础上构建了生鲜农产品配送网络结构模型;研究根据确定的配送网络,考虑诸多约束条件,应用多目标规划方法,建立顾客满意度最大和成本最小的多目标规划模型,改进GA来求解带模糊时间窗的配送路径问题,并用算例进行验证;研究根据某典型冷链物流企业配送网络实际数据,应用Flexsim仿真方法对该网络进行了仿真优化研究。本文的主要结论包括:(1)建立了生鲜农产品配送网络节点选址模型,给出了模型的求解方法,并构建了生鲜农产品配送网络结构模型;(2)建立了生鲜农产品配送路径优化模型并设计了模型的求解算法,研究结果表明,生鲜农产品配送路径多目标优化模型及其求解算法是有效的,是可以为生鲜农产品配送路径决策优化提供理论依据和实践指导;参数敏感性分析结果可以作为模型应用中对参数进行有效控制的依据;(3)基于Flexsim建立了某冷链物流企业配送网络仿真模型,根据对仿真模型运行结果的分析提出了优化该企业配送网络的具体措施。
[Abstract]:In recent years, with the adjustment of agricultural structure and the continuous improvement of the consumption level of residents, the output and circulation of fresh agricultural products in China have increased year by year, and the whole society has been paying more and more attention to the quality and safety of fresh agricultural products. This put forward higher management and control requirements for fresh agricultural products from the origin to the hands of consumers. In general, there are two important factors that affect the quality and safety of fresh agricultural products in circulation: one is the temperature factor, that is, the fresh agricultural products in circulation should be stored in an appropriate temperature environment, and the other is the time factor. Fresh agricultural products have strong sensitivity to time, and the time spent in transportation and distribution should be reduced as much as possible. According to the characteristics of fresh agricultural product distribution, considering many resource constraints, this paper optimizes and simulates the distribution path and operation efficiency of fresh agricultural product distribution center on the basis of constructing fresh agricultural product distribution network. It is of great significance to reduce the distribution time and cost of fresh agricultural products, improve the efficiency of distribution of fresh agricultural products, and ensure the freshness of agricultural products to the maximum extent. The rational distribution network of fresh agricultural products is the key to improve the distribution efficiency. According to the characteristics of fresh agricultural products such as perishable and short shelf life and taking into account the factors such as cost, economic environment and infrastructure, this paper studies the application of multi-objective programming method. The multi-objective location model of fresh agricultural product distribution center is established and verified by a numerical example. On this basis, the network structure model of fresh agricultural product distribution is constructed, and a lot of constraints are considered according to the determined distribution network. A multi-objective programming model with maximum customer satisfaction and minimum cost is established by using multi-objective programming method, and GA is improved to solve the distribution routing problem with fuzzy time window, and an example is used to verify it. According to the actual data of a typical cold chain logistics enterprise distribution network, the simulation optimization of the network is studied by using Flexsim simulation method. The main conclusions of this paper include: (1) the node location model of fresh agricultural products distribution network is established, and the method of solving the model is given. The network structure model of fresh agricultural product distribution is constructed. (2) the optimization model of fresh agricultural product distribution path is established and the algorithm for solving the model is designed. The research results show that, The multi-objective optimization model of fresh agricultural product distribution path and its solving algorithm are effective and can provide theoretical basis and practical guidance for the decision optimization of fresh agricultural product distribution path. The results of parameter sensitivity analysis can be used as the basis for the effective control of parameters in the application of the model. (3) based on Flexsim, a distribution network simulation model of a cold chain logistics enterprise is established. Based on the analysis of the results of the simulation model, the concrete measures to optimize the distribution network of the enterprise are put forward.
【学位授予单位】：苏州科技学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F326.6

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