Reliability Analysis of Networks Interconnected With Copulas

Reliability Analysis of Networks Interconnected With Copulas
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Copula互联网络的可靠性分析

DOI:
10.1115/1.4044043
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发表时间:
2019
期刊:
ASCE-ASME J Risk and Uncert in Engrg Sys Part B Mech Engrg
影响因子:
--
通讯作者:
Michael Beer
Michael Beer
中科院分区:
--
文献类型:
--
作者:
Behrensdorf;Jasper;Matteo Broggi;Michael Beer

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随着现代基础设施网络的规模和复杂性的增加,设计有效和准确的方法来分析这些系统的可靠性提出了挑战。必须特别小心,以包括网络之间任何可能的相互依赖关系,并适当处理所有的不确定性。本文提出了一种基于蒙特卡罗模拟和生存签名的复杂互联网络可靠性分析的新方法。生存签名的应用是克服经典分析技术的局限性和促进竞争的故障模式的关键。的(间)依赖关系建模使用藤连接,而不确定性处理的概率框和不精确的连接。基于IEEE可靠性测试系统的一个复杂的场景,所提出的方法进行了测试,证明了其有效性和突出的能力,以模拟复杂的场景受到各种相关的故障机制。
With the increasing size and complexity of modern infrastructure networks rises the challenge of devising efficient and accurate methods for the reliability analysis of these systems. Special care must be taken in order to include any possible interdependencies between networks and to properly treat all uncertainties. This work presents a new approach for the reliability analysis of complex interconnected networks through Monte Carlo simulation and survival signature. Application of the survival signature is key in overcoming limitations imposed by classical analysis techniques and facilitating the inclusion of competing failure modes. The (inter)dependencies are modeled using vine copulas while the uncertainties are handled by applying probability boxes and imprecise copulas. The proposed method is tested on a complex scenario based on the IEEE reliability test system, proving its effectiveness and highlighting the ability to model complicated scenarios subject to a variety of dependent failure mechanisms.
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