城市供水系统故障蔓延动力学研究

Research of failure spreading dynamics of urban water supply system

基于复杂网络理论,建立了城市供水系统故障蔓延动力学模型,模型考虑了城市供水复杂网络结点的自修复功能、故障蔓延机制。研究了自修复因子、延迟时间因子两个特征参数对三种应用广泛的城市供水复杂网络(随机网络、无尺度网络和小世界网络)结点修复率和故障结点数的影响。模拟结果与实际城市供水系统的特征一致,表明所建立的模型可以有效地模拟城市供水系统故障蔓延动力学。

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.