考虑随机行驶时间的商贸物流网络设计问题研究

摘要

In this paper, in view of the issues in the design of the trade logistics network and with the minimal network establishment cost as the target, we attempted to finalize the location of the various levels of distribution centers on the network and the running route of the logistics vehicles. During the optimization process, we considered the stochasticity of the traveling time of the logistics vehicles and established the programming model targeting at minimizing the total distribution center construction cost and the expected logistics distribution cost. Then we adopted the genetic algorithm to solve the model and presented the programming and calculation steps. At the end, through a numerical example, we demonstrated the validity of the model and algorithm.%针对商贸物流网络设计问题，以最小化商贸物流网络构建成本为优化目标，同时决策商贸物流各级配送中心的选址与商贸物流车辆的配送路径。在优化过程中考虑物流车辆行驶时间具有随机特性，以各级配送中心建设成本最小化、物流配送成本期望值最小化为目标，构建了多目标规划模型。选用遗传算法提出了设计模型的求解算法并给出了编码设置，物流配送成本计算等关键步骤设计。最后，采取算例验证了模型与算法的有效性。