物流配送中心选址模型及其算法分析

随着国民经济的发展,物流业越来越受到重视。在大力发展物流业的同时面临的一个共同的问题是:配送中心如何进行合理选址。文章提出,较佳的配送中心选址方案是使商品通过配送中心进行汇集、中转、分发直至输送到需求点的全过程的效益最好。因此,配送中心如何选址是一个重要问题,且需要一个系统性、全局性的安排。文章根据配送中心选址问题的特点和所应满足的条件,以运输成本最低为约束条件,构造选址问题数学模型,并通过启发式算法得出选址模型最优解,求得工厂对各物流配送中心配送能力和物流配送中心对需求点配送能力的最佳配送方案。实证研究表明,该模型是正确的,可有效解决物流系统分析和设计中的配送中心选址问题,优化物流系统,促使物流系统有效运作,提高企业经济效益,真正实现物流"第三利润源泉"的功能。

Analysis of Logistics Distribution Center Allocation Model and Algorithm

With the development of economy in our country, logistics should be paid more attention to. When we develop the logistics, we are faced with a common problem-how to determine the best location of logistics distribution center(DC). In logistics network, the best location is the place that makes the effect of the process of collecting, transferring, distributing, and transporting to the consumer through DC best. So how to determine the location of the DC is an important problem in the DC planning and needs a systemic and all-around arrangement. In this paper, according to features and conditions that the DC allocation should satisfy, the DC allocation mathematics model is constructed based on lowest transportation cost. Heuristic algorithm is also introduced into the solution of model. The most optimal results of the model are obtained by choosing proper combination method. Finally, the correctness of the model is certified by instances and thus provides reference for future DC construction.