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Serviceability Assessment for Cascading Failures in Water Distribution Network under Seismic Scenario

机译：地震情景下配水网络级联故障的可服务性评估

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摘要

The stability of water service is a hot point in industrial production, public safety, and academic research. The paper establishes a service evaluation model for the water distribution network (WDN). The serviceability is measured in three aspects: (1) the functionality of structural components under disaster environment; (2) the recognition of cascading failure process; and (3) the calculation of system reliability. The node and edge failures in WDN are interrelated under seismic excitations. The cascading failure process is provided with the balance of water supply and demand. The matrix-based system reliability (MSR) method is used to represent the system events and calculate the nonfailure probability. An example is used to illustrate the proposed method. The cascading failure processes with different node failures are simulated. The serviceability is analyzed. The critical node can be identified. The result shows that the aged network has a greater influence on the system service under seismic scenario. The maintenance could improve the antidisaster ability of WDN. Priority should be given to controlling the time between the initial failure and the first secondary failure, for taking postdisaster emergency measures within this time period can largely cut down the spread of cascade effect in the whole WDN.
机译：供水的稳定性是工业生产，公共安全和学术研究的热点。本文建立了供水网络（WDN）的服务评估模型。可服务性从三个方面进行衡量：（1）灾难环境下结构组件的功能； （2）级联故障过程的识别； （3）系统可靠性的计算。在地震激励下，WDN中的节点和边缘故障是相互关联的。级联故障过程提供了供需的平衡。基于矩阵的系统可靠性（MSR）方法用于表示系统事件并计算非故障概率。以一个例子来说明所提出的方法。模拟了具有不同节点故障的级联故障过程。可服务性进行了分析。可以确定关键节点。结果表明，在地震情况下，老化的网络对系统服务的影响更大。维护可以提高WDN的抗灾能力。应该优先控制从初始故障到第一次二次故障之间的时间，因为在此时间段内采取灾后应急措施可以大大减少整个WDN中级联效应的扩散。

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  • 来源
    《Mathematical Problems in Engineering》 |2016年第4期|1431457.1-1431457.10|共10页
  • 作者

    Shuang Qing; Liu Yisheng; Liu Jing; Chen Qigang;

  • 作者单位

    Beijing Jiaotong Univ, Sch Econ & Management, Dept Construct Management, Beijing 100044, Peoples R China|Beijing Ctr Ind Secur & Dev Res, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Sch Econ & Management, Dept Construct Management, Beijing 100044, Peoples R China|Beijing Ctr Ind Secur & Dev Res, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Sch Econ & Management, Dept Construct Management, Beijing 100044, Peoples R China|Beijing Ctr Ind Secur & Dev Res, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China;

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