关键词: 复杂网络, 城市供水系统, 故障蔓延动力学

Abstract: Based on the complex network theory, a failure spreading dynamics model of urban water supply system is established, the self-repairing function and the failure spreading mechanism of urban water supply complex network nodes are considered into the model. The thesis studies the influence of two characteristic parameters that self-repairing factor and delay time factor on the node-repairing rate and fault node number of three widely-used city water supply complex networks （random network, scale-free network and small world network）. The conformity of the simulated result and actual city water supply system indicates that the model can effectively simulate the failure spreading dynamics of urban water supply system.

Key words: complex network, urban water supply systems, failure spreading dynamics