摘要
为解决多级物流网络节点的选址问题,提出与现实中企业多元化经营范围相应的多级物流节点选址优化模型.该方法将物流节点选址问题转化为函数最小值求最优解问题;将多级网络按照节点层数分割成若干个3级规划模型;将每层的上一层级假设成供应商点,下一层级假设为客户点;用并行遗传算法,通过循环求解3级规划模型最优解,得出整个物流网络规划方案的最优决策.物流节点选址实例应用和仿真分析表明,该方法具有较强的可操作性和广泛的适用性,对优化物流节点以及类似设施选址具有一定的指导意义和参考价值.
To solve the problem of locations for multi-level logistics network, an optimization model for the locations of multi-level logistics network correspondent with the diversified scope of company is proposed. According to this method, selection of the locations is transformed into finding the optimal solution of the minimum problem, and multi-level network is divided into several three-layer planning modes according to the number of node layers. Each upper layer is assumed to be supplier＇ s site and the next layer is assumed to be customer＇ s site. The optimal solution of entire logistics network is obtained by computing the optimal solution of the three-layer planning modes circularly using parallel genetic algorithm. Application examples and simulation analysis show that the method has strong feasibility and extensive applicability, and it is of some guiding significance and reference value for the location selection optimization of logistics and other similar facilities.
出处
《上海海事大学学报》
北大核心
2009年第4期30-35,共6页
Journal of Shanghai Maritime University
基金
上海市教育委员会科研项目(06FZ009)
关键词
多级物流节点
选址模型
并行遗传算法
multi-level logistics network
location selection model
parallel genetic algorithm
