基于遗传算法的A企业销售物流运输模式的优化研究

发布时间：2018-04-05 05:19

本文选题：钢铁　切入点：销售物流模式　出处：《河北科技大学》2014年硕士论文

【摘要】：由于中国的钢铁生产企业与消费地一般情况下距离很远,导致钢铁企业在长距离的预定式物流模式下,物流费用居高不下。A企业是一家钢铁生产企业,地处华北内陆城市,而其需求市场集中大部分在东北、华南地区,其钢铁产品主要依靠铁路,运输到各个需求下游企业,物流成本高出行业内拥有水路条件的生产企业。高昂的物流成本,使得A企业面临着巨大的成本压力,大大削弱了自身的竞争力。本文针对A企业销售物流运输现状,提出了A企业销售物流运输模式优化,并且系统的分析了运输过程中的各类影响因素,建立了多式联运运输虚拟网络图。通过分析可知,销售物流运输模式的优化研究,实际上是研究运输虚拟网络图中,各城市节点间运输路线和运输方式的组合优化问题。论文在充分考虑A企业钢铁产品运输过程中运输时间和运输成本的问题后,建立了A企业销售物流运输模式优化模型,并用遗传算法对该模型的目标函数求得最优解。本文从整体上对A企业销售物流模式中的运输方式和运输路线的选择进行优化,得出多式联运方案,为A企业制定运输方案提供了决策参考,从而节省了运输成本,提高物流运输效率,进而提高了A企业的经济效益。
[Abstract]:Due to the distance between the iron and steel production enterprises in China and the place of consumption in general, the iron and steel enterprises are located in the inland cities of North China in the long distance predetermined logistics mode, the logistics costs of which are high. A enterprise is an iron and steel production enterprise, which is located in the inland city of North China.Its demand market is concentrated mostly in Northeast and South China, its steel products mainly rely on the railway, transport to the downstream enterprises of each demand, the logistics cost is higher than the production enterprises with waterway condition in the industry.The high logistics cost makes A enterprise face huge cost pressure, greatly weakened its own competitiveness.In view of the current situation of sales logistics transportation in enterprise A, this paper puts forward the optimization of transportation mode of sales logistics in enterprise A, and systematically analyzes all kinds of influencing factors in the process of transportation, and establishes the virtual network diagram of multimodal transport.Through the analysis, we can know that the research on the optimization of the transportation mode of the sales logistics is actually to study the combination optimization of the transportation route and the transportation mode among the nodes in the virtual network of transportation.After considering the transportation time and transportation cost in the transportation process of iron and steel products in enterprise A, the optimization model of transportation mode of sales logistics for A enterprise is established, and the optimal solution is obtained by using genetic algorithm to obtain the objective function of the model.This paper optimizes the choice of transportation mode and route in A enterprise's sales logistics mode, and obtains the multimodal transport scheme, which provides a decision reference for A enterprise to make transportation plan, thus saving transportation cost.Improve the efficiency of logistics transportation, and then improve the economic benefits of enterprise A.
【学位授予单位】：河北科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F426.31;TP18;F274

【共引文献】