Research On Invulnerability Of Air Cargo Network

The stability of the air cargo network plays a pivotal role in the modern logistics system.Extreme bad weather,natural disasters,and terrorist attacks can all lead to reduced network accessibility and severe shocks to the supply chain system.Especially during the epidemic,some airport nodes were disrupted.The air cargo network has been damaged to varying degrees and the cargo efficiency has been significantly reduced.Therefore,in order to ensure the smooth operation of our air cargo network,we should actively deal with air cargo network emergencies.Analyzing the network structure and identifying the important airport nodes and routes in the network,analyzing the destruction of our air cargo network from many angles is of great significance to optimize the air cargo network.Based on this,the main research contents are as follows:Firstly,the air freight network model is constructed,and the static statistical characteristics of the network are calculated and analyzed.The results show that our air cargo network is a small world network with scale-free characteristics.Secondly,five attack strategies are designed based on random attack and deliberate attack,and the destructiveness of the network is measured from five aspects: network effectiveness,scale,connectivity,agglomeration and accessibility.On this basis,the destructiveness evaluation model of Chinese air cargo network is established.The following conclusions are drawn from the simulation evaluation of destruction resistance:(1)Under random attack strategy,the network has better anti-destruction performance.Recalculating the maximum intercalation attacks have a strong ability to destroy networks.(2)For airport nodes and routes that have a greater influence on efficiency and scale survivability,the degree value and medium value are larger.Thirdly,invulnerability optimization of air cargo network based on edge-adding strategy.The study found that adding edges to the network can improve the invulnerability of the network,and the most significant edge-adding strategy is the sum of the minimum betweenness.