Y企业生鲜农产品配送优化问题研究,物流工程硕士论文.docx
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1、Y企业生鲜农产品配送优化问题研究,物流工程硕士论文摘 要 随着近些年我们国家新零售和社区零售等商业形式的大范围铺开,生鲜农产品的消费需求越来越旺盛,与此同时,消费者对于生鲜农产品也愈加注重质量和新鲜度,但是当前我们国家冷链物流配送体系仍然存在一定的缺乏,在配送经过中存在货损较大以及配送时间布置不合理等问题。本文以Y连锁超市企业为研究对象,针对Y企业在生鲜农产品配送经过中存在的配送道路经历体验性选择较强、对门店等待送达时间重视不够和生鲜农产品货损较大等问题进行分析并以此建立数学模型,使得Y企业能够明确在配送经过中的各项成本因素,帮助企业确定合理的配送道路,降低配送成本。 本文的主要研究内容如下:
2、 通过收集整理现有的有关生鲜农产品配送途径优化问题的相关资料,分析Y企业当前在产品配送经过中存在的问题,确定影响配送经过的各项成本因素,将生鲜农产品货损成本和企业各门店的时间窗成本充分考虑,通过简化实际情景建立符合Y企业生鲜农产品从配送中心到门店运输和服务实际经过的配送成本模型并确定目的函数和约束条件。 在求解Y企业配送优化模型时,首先使用遗传算法和人工蜂群算法对模型进行求解,然后使用一种在人工蜂群算法侦查蜂阶段引入遗传算法的穿插、变异和选择思路对人工蜂群算法进行改良的混合算法对Y企业配送优化模型进行求解,提升算法的搜索能力,使得改良算法能够求解得到更优的配送方案。 利用Y连锁超市企业分布在北
3、京市的50家门店数据进行算例分析,通过比照验证改良后的遗传-人工蜂群算法的性能提升,并确定Y企业配送中心的各车辆的配送道路,然后分别对Y企业在日常经营经过中可能发生变化的门店需求量、运输车辆行驶速度和生鲜农产品服务系数进行灵敏度分析,分析各个因素变化对配送总成本的影响,并根据相应的分析结果对Y企业提出管理见解。 本文关键词语 : 车辆途径优化;生鲜农产品;货损成本;软硬时间窗;人工蜂群算法。 ABSTRACT With the widespread spread of new retail and community retailing business models in China ove
4、rthe recent years, the consumer demand for fresh agricultural product is becoming more and moredemanding, at the same time, consumers lay emphasis on the quality and freshness of freshagricultural products distributed, but there are still some shortcomings in China s cold chain logisticsand distribu
5、tion system, there are some problems such as large damage and unreasonabledistribution time arrangement. In this paper, Y supermarket chain enterprises as the research object,for Y enterprises during the delivery process of fresh agricultural products existing in the distributionroute experience of
6、strong selection and the store expected delivery time attention is not enough toanalyze and establish a mathematical model, so that Y enterprises can clear the distribution processof various cost factors, to help enterprises determine a reasonable distribution route and reducedistribution costs. The
7、 main research contents of this paper are as follows: By aggregating and separating the available information on the path optimization of thedistribution of fresh agricultural products, analyzing the extant problems of Y enterprises in theprocedure of product distribution, determining the cost facto
8、rs affecting the distribution process,taking the cost of loss of fresh produce and the cost of client time window into consideration, bystreamlining the actual situation to establish a cost model in line with the actual procedure of Yenterprise fresh agricultural products from distribution center to
9、 store transportation and service anddetermining the constraints and parameters. When solving Y enterprise distribution optimization model, the first to use genetic algorithm andartificial colony algorithm to solve the model, and then use the artificial bee colony algorithm scoutsstage idea about se
10、lecting the introduction of the crossover and mutation of genetic algorithm andhybrid algorithm for artificial bee colony algorithm was improved to Y enterprise distributionoptimization model for solving, improve algorithm search ability, the improved algorithm is able toobtain a better distribution
11、 scheme. The data of 50 stores of Y supermarket chain distributed in Beijing were used for example analysis. Through comparison, the performance improvement of the improved genetic and artificial beecolony algorithm was verified, and the distribution routes of each vehicle in the distribution center
12、of Y were determined. Then, the sensitivity analysis of Y s store demand, transportation vehiclespeed and fresh agricultural product service coefficient that may change in the daily operationprocess is carried out, and the influence of each factor change on the total distribution cost isanalyzed, an
13、d management opinions are put forward for Y according to the corresponding analysisresults. KEY WORDS : Vehicle routing problem; Fresh agricultural products; The cost of damage;Soft and hard time window; Artificial bee colony algorithm 。 文章为硕士论文,如需全文请点击底部下载全文链接】 1.2、 研究目的与选题意义. 1.2.1 、研究目的 1.2.2 、选题
14、意义. 1.3、主要研究内容及技术道路图. 1.3.1 、主要研究内容. 1.3.2、技术道路图 1.4、研究方式方法与创新点. 1.4.1、 研究方式方法. 1.4.2 、论文创新点 1.5、本章 第2章 相关理论基础及其文献综述 2.1、关于生鲜农产品冷链物流相关文献综述. 2.1.1、生鲜农产品冷链物流概念. 2.1.2、生鲜农产品冷链物流特点 2.2、车辆途径优化问题相关文献综 2.2.1、车辆途径优化问题相关研 2.2.2、带时间窗的途径优化问题研 2.2.3、生鲜农产品配送车辆途径优化问题研. 2.3 、途径优化问题求解算法相关综述. 2.3.1、途径优化问题求解算法分类. 2.3
15、.2、途径优化问题求解的元启发式算法 2.3.3、途径优化问题求解算法的改良. 2.4、文献评述. 第3章 Y企业生鲜农产品配送途径优化模型构建 3.1、Y企业主营业务与存在问题分析 3.1.1、企业现在状况概述. 3.12、企业主营业务与流程. 3.13、配送经过存在的问题. 3.2、模型基本假设与符号讲明 3.2.1、模型描绘叙述与基本假. 3.2.2、参数与符号讲明 3.3、配送车辆途径优化模型目的函数的构建 3.3.1、配送的运输成本. 3.3.2、生鲜农产品货损成本. 3.3.3、时间窗惩罚成本. 3.4、配送车辆途径优化模型的构建. 3.5、本章小结. 第4章 模型求解算法设计与
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