考虑机场等级的机场网络级联失效抗毁性研究

Invulnerability of cascading failure of airport network considering airport level

各个机场的等级存在差异,限制了各个机场所能起降飞机的类型。在级联失效抗毁性研究的基础上,考虑机场等级和飞机等级对级联失效过程中负载分配的影响,运用复杂网络理论建立了新的级联失效抗毁性模型。以华东地区的机场网络进行实例仿真,结果表明:F等级的机场负载向其他未失效节点进行负载分配的难度较大,对网络的抗毁性产生了较大的影响;E、D和C这类中低等级的机场能够有效进行负载分配,对网络级联失效的影响较小。

According to the relevant ICAO standards and regulations,the airport is classified,and the aircraft types are also divided,and the types of aircraft that can take off and land at different levels of airports are specified.Therefore,there are differences in each airport network,which limits the aircraft(load)level that each airport can take off and land.Based on the research of cascading failure invulnerability,this paper considers the influence of airport level and aircraft level on the load distribution in the process of cascading failure and uses complex network theory to process the cost airport network hierarchically based on the original cascading failure invulnerability model,so that the airports of different levels are in different levels.Then,according to the limitation of the level factor,the load distribution model is adjusted to distribute the load from high to low,and each time the load can only be distributed to the airport which is not lower than the current load level and is not invalid.Thus,a new cascading failure invulnerability model is established.Finally,taking the airport network in East China as an example,the simulation results show that it is difficult for F-level airport load to distribute the load to other nodes that have not failed,which has a great impact on the invulnerability of the network;E.The results show that the low and medium-level airports such as D and C can effectively distribute the load,and have less impact on the network cascading failure.According to the above analysis results,it is suggested that the airport node should be connected with the airport node which is not lower than the airport node level as far as possible,and the node capacity and coupling relationship with other nodes should be appropriately increased on the premise of considering economic benefits.