物流网络级联失效研究

Analysis of the Cascading Failure in Logistics Network

一般物流系统中的节点业务处理能力往往较为固定,且节点间的业务传递效率对于突发事件下的失效负载的再分配传递有着很大的影响.在此基础上分析并构建突发事件下的物流网络级联失效模型,用以分析研究物流系统中的突发事件所造成的破坏性的传播规律,以期建立实际运作环境下的物流网络突发事件影响分析方法,为后续的应急管理研究提供理论指导.采用了系统整体业务负载能力损失作为最终破坏性程度的衡量准则.最后,通过数值仿真验证了该方法的有效性和实用性.

The loading capability of logistics nodes have always been fixed in logistics system.And the transmission efficacy of nodes has an important influence on reapportionment of failure node＇s load- ing.So a cascading failure model of logistics network is built for the normal logistics systems under emergency. This model to study the spreading disciplinarian of emergency in logistics network, and it is hoped to set up a method for analysing the effect of emergency diffusion in real logistics network.This method contributes a powerful theoretical support for making the emergency plan,and uses the loss of logistics＇ loading capability as the important standards of measuring the degree of destruction. Then, the simulation results indicate the validity and practicality of this method.