关键词: 供应链网络, 欠载级联失效, 容量上限, 容量下限, 级联失效模型

Abstract: Owing to the deficiency of researching underload cascading failure by underload cascade failure model of supply chain network directly in infrastructure network,a new cascading failure model was proposed from three aspects: firm failure due to under-load,load capacity of firm with upper and lower limits,and loads redistribution between firms according to business relationship strength.Erdos-Renyi and Barabasi-Albert network model were used to generate supply chain networks,and the validity of the proposed cascading model was verified under random attack and target attack.The effects of model parameters on cascading failure spread were investigated.Results demonstrated that there was a best value range for load parameter  and relationship strength parameter,in which the networks achieved better robustness against cascading failure spread;there was a negative correlation between capacity upper limit parameter  and cascading failure size;there was a positive correlation between capacity lower limit parameter  and cascading failure size.

Key words: supply chain networks, underload cascading failure, capacity upper limit, capacity lower limit, cascading failure model