中文摘要：

介绍了相继故障产生的原理和BA无标度网络模型的算法。用最大连通子图衡量网络的鲁棒性,通过仿真得到BA无标度网络遭遇随机攻击和蓄意攻击后网络鲁棒性的变化,同时得到网络负载对网络鲁棒性的影响。仿真结果表明BA无标度网络鲁棒但又脆弱。

英文摘要：

The principle of cascade failures is firstly introduced,and the BA scale-free network model of the algorithm is introduced,then the largest connected subgraph is used to measure the robustness of the network. The robustness of BA scale-free network could be gotten through the simulation and the robustness change after random failurs and intentional attack maximum could be taken. At the same time the network load effects on the robustness of the network could be obtained. The simulation results show that BA scale-free network is robust but fragile.