中文摘要：

选址问题的优化模型一般是多目标约束优化模型,综合考虑物流成本和物流服务能力,以物流成本最小化和物流服务能力最大化为目标,构建一个多目标优化选址模型,通过添加参数和运用约束处理方法,将选址问题化为单目标约束优化问题,并利用嵌入最速下降法的改进粒子群优化算法ZK_PSO_SD算法进行求解,所得数值分析和对比的结果表明,所建立的选址模型具有很好的实用性.

英文摘要：

Location problem of the optimization model is generally a multi-objective constrained optimization model, which is considered of the goal that has the logistics cost minimization and logistics service capability maximization, and then building a multi-objective optimal location model. By adding parameters and using the constraint handling method, the location problem is changed into a single objective constrained optimization problem, and the improved particle optimization algorithm based on the steepest method is used to solve the problem of ZK-PSO-SD algorithm. The results of numerical analysis and comparison show that the established location model has good practicability.