A method for assessing network robustness of an infrastructure based on a multilayer complex network

Abstract

The invention discloses a method for evaluating the robustness of an infrastructure network based on a multilayer complex network, which comprises the following steps of (1) constructing a plurality of different infrastructure networks into a multilayer network according to the traditional cascade kinetics, and establishing a one-to-one mutual dependence relationship among the multilayer networksto form a multilayer network model; (2) simulating a fault occurrence process in a real infrastructure network through the multilayer network model in the step (1), and calculating the size of a maximum communication component when the multilayer network model reaches a steady state according to a seepage model; or according to a generation function and a self-alignment equation theory, using a numerical analysis method for solving the size of the maximum connected component when the multilayer network model in the step (1) reaches a steady state; and (3) assessing the network robustness of the infrastructure according to the size of the maximum communication component in the step (2). The method solves the problem that the existing method neglects the characteristics of the real network and underestimates the robustness of the network, and can more truly evaluate the robustness of the real network.

Description

technical field [0001] The invention belongs to the field of complex network cascading dynamics, and in particular relates to a method for evaluating the robustness of an infrastructure network based on a multi-layer complex network. Background technique [0002] With the rapid development of society and the continuous advancement of technology, the internal connections between infrastructure networks in the real world have not only become intricate, but also often interdependent, interdependent, and mutually restrictive. [0003] The importance of interdependent systems for protecting the nation's critical systems was first mentioned in a 1997 report by the U.S. Commission on Critical Infrastructure Cyber ​​Protection. In reality, there are many cascading failures caused by the dependence between infrastructure networks, especially in 1998, the failure of the US Xinsi space communication satellite "Galaxy 4" communication satellite caused the continuous energy crisis in Cal...

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Problems solved by technology

[0009] The purpose of the present invention is to provide a method for evaluating the robustness of infrastructure networks based on multi-layer complex networks, which solves the problem that existing methods ignore the characteristics of real networks and underestimate the robustness of networks, and can evaluate the robustness of real networks more realistically. Rod

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