基于MAS与SD的核心企业物流系统混合建模

Hybrid Modeling of Core Enterprise Logistics Systems Based on MAS and SD

针对供应链环境下核心企业物流系统的特点,在详细分析系统动力学(SD)和多Agent系统(MAS)单独建模的优缺点的基础上,论证了混合建模的必要性,提出了基于MAS和SD的供应链环境下核心企业物流系统的混合建模仿真方法。在所建立的混合模型中,MAS用来模拟供应链成员的行为以及成员之间的相互作用,SD用来模拟各成员的行为过程中涉及的决策。系统的运行情况通过供应链各级订单随时间的变化来描述。仿真结果定性地符合供应链系统动力学的一般规律,证明这种混合建模方法是可行的。

Aiming at the features of logistics system inside a core enterprise in supply chain environment, on the basis of the detailed analysis for merits and demerits by separately applying System Dynamics （SD） or Multi-Agent System （ MAS）, the necessity of hybrid modeling is testified, and a hybrid modeling approach and a model based on MAS and SD are presented for logistics system inside a core enterprise in supply chain environment, in which MAS is used for simulating the behaviors of each entitiy and the interactions among entities in the supply chain, while SD is used for simulating the decision made in the behavior process of the entities. The operation state of the system is described through inventory level, order and order backlog at each stage. The simulation results of the model accord qualitatively with the general regularity of dynamics of supply chain system, which validates the feasibility of this hybrid modeling approach.