基于不对称依赖的相依网络级联故障分析

Analysis of cascading failures of interdependent networks based on asymmetric dependency

针对已有关于相依网络级联故障研究中未考虑有向依赖边的问题,展开了基于不对称依赖的相依网络级联故障分析,构建了基于负载容量的级联故障模型,提出基于连通分量的相依网络鲁棒性测度方法,开展了不同网络组合、耦合方式、容忍系数和移除比例在不同攻击模式下的网络鲁棒性研究。结果表明,随机攻击模式下不对称相依网络鲁棒性与以往研究结论类似,蓄意攻击模式下不对称相依网络鲁棒性则取决于攻击范围和容忍系数的大小。通过一则作战网络示例分析证明了所提方法的实际应用价值,对完善相依网络理论研究具有一定的参考意义。

To solve the problems that the directed dependency edge is not considered in the study of cascading failure of interdependent networks,the cascading failure analysis of interdependent networks based on asymmetric dependency is carried out.A cascading failure model based on load-capacity is constructed.A robustness measurement method for interdependent networks based on connected components is proposed.The research on network robustness of different network combinations,coupling methods,tolerance coefficients and removal ratios under different attack modes is carried out.The results show that the robustness of asymmetric interdependent networks in random attack mode is similar to previous research conclusions.The robustness of asymmetric interdependent networks in intentional attack mode depends on the size of the attack range and tolerance coefficient.The analysis of an air combat system network example illustrates the practical application value of the research,and it has certain reference signification for perfect the theoretical research of interdependent networks.