RELIABILITY AS TOOL FOR HYDRAULIC NETWORK PLANNING
RELIABILITY AS TOOL FOR HYDRAULIC NETWORK PLANNING
复制标题
可靠性作为液压网络规划的工具
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
D. Pianese
中科院分区：
文献类型：
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作者：
R. Gargano;D. Pianese
本文提出了一种方法来评估供水系统的可靠性，可用于在设计阶段，并确定维修工程进行现有的系统。该方法是基于统计分析的无量纲性能指数（Ihydraulic performance indicesN）来自大量的模拟各种水系统的需求情况和/或操作条件。I水力可靠性指数N被假设为在给定的运行条件下，水力性能指数高于一定阈值的概率。最后，系统的整体可靠性（机械+液压）估计使用Ioverall可靠性指数N，这是由加权平均值的各种操作条件下获得的液压性能指标定义。使用这种方法的案例研究表明，这种方法应用到广泛的情况下的具体可能性，和小的影响，通常施加的链接，管道和阀门的故障等事件的整体系统的可靠性。
This paper presents a methodology to evaluate the reliability of water distribution systems that can be used in the design phase and for identifying repair works to be carried out on existing systems. The methodology is based on the statistical analysis of dimensionless performance indices (Ihydraulic performance indicesN) derived from a large number of simulations of various water system demand scenarios and/or operating conditions. The Ihydraulic reliability indexN is assumed as the probability that, under a given operating condition, the hydraulic performance index will be above a certain threshold. Finally, the system’s overall reliability (mechanical + hydraulic) is estimated using the Ioverall reliability indexN, which is defined by the weighted mean of the hydraulic performance indices obtained for the various operating conditions. A case study using this methodology shows the concrete possibilities of applying this approach to a wide spectrum of cases, and the small influence on overall system reliability normally exerted by such events as the failure of links, pipes, and valves.