Research On Robustness Of Chengdu Area Aviation Control Network Based On Interdependent Networks

With the increasing demand for people’s travel and the increasing number of aircraft in operation,in order to improve the safety margin of air traffic control services,under the premise of ensuring the number of flights,the relevant civil aviation departments can only re-divide or open sectors.In order to alleviate the safety pressure of air routes.Subsequently,the complex system network composed of the control handover relationship between sectors,the conflict relationship between aircraft and the control relationship between sectors and aircraft has become more and more complex.In order to reduce flight delays and ensure the normal and orderly operation of other flights,the structure of this complex system may be damaged when there are control equipment failures,aircraft special circumstances,etc.In order to explore the ability of this complex system to resist external interference,this paper builds an aviation control dependent network model based on the dependent network theory,and conducts specific discussions based on it:Firstly,the research status and basic theory of complex networks are summarized,and relevant examples are used as inspiration to construct an aviation control interdependent networks model built by two-layer subnetworks of control sector network and static flight state network,and enumerate the measurement subnetworks.Statistical characteristic indicators of structural properties.Then,the structural characteristics of each sub-network are discussed respectively by taking the flight scenario of Chengdu regional control airspace as an example,and it is concluded that in this scenario,the aviation control-dependent network constructed in this paper is composed of a scale-free network and a small-world network coupled with each other.Among them,the sector network has scale-free characteristics,and the static flight state network has small-world characteristics.In the aviation control-dependent network,the evaluation indicators to measure the static robustness of the sub-network-network connectivity rate and network efficiency are defined.The method of attacking sub-network nodes analyzes the static robustness of each sub-network,and analyzes the key nodes that affect the static robustness of the sub-network.Finally,the cascading failure model of aviation control dependent network is proposed for the first time,the initial load,capacity and load redistribution principle of each sub-network node are defined,and the cascading failure mechanism of aviation control dependent network is formulated.The outer degree value of the sector node and the inner degree value of the aircraft node define the initial load of the sector network and the static flight state network node as a function.The cascading failure robustness of the aviation control interdependent network is analyzed by taking the flight scenario of Chengdu regional airspace as an example.The analysis points out the key sector nodes and concludes that the importance of sector nodes is higher than that of aircraft nodes,which can provide a reference for studying the ability of real aviation control systems to resist risks.