Extended object-oriented Petri net model for mission reliability simulation of repairable PMS with common cause failures
Extended object-oriented Petri net model for mission reliability simulation of repairable PMS with common cause failures
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DOI：
10.1016/j.ress.2014.11.012
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发表时间：
2015-04
期刊：
影响因子：
--
通讯作者：
Xin-yang Wu;Xiaoyue Wu
中科院分区：
文献类型：
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作者：
Xin-yang Wu;Xiaoyue Wu
分阶段任务系统（PMS）有不同成功标准的几个阶段。传统的分析方法在对复杂PMS进行可靠性评估和分析时，通常需要做一些假设，例如元器件不可修复或元器件不发生共因故障。但是，当假设与实际情况不一致时，评价分析结果可能不适用。本文提出了一种扩展的面向对象Petri网（EOOPN）模型，用于具有CCFs的可修PMS任务可靠性仿真。基于面向对象Petri网（OOPN）， EOOPN定义了四个可重用的子模型，分别在系统、阶段和组件级别描述PMS，逻辑转换以更易读的形式描述复杂组件的可靠性逻辑，广播位置在组件之间同步传输共享信息。扩展后的EOOPN可以方便地处理具有外部和内部ccf的可修PMS。以PMS为例，说明了基于EOOPN的任务可靠性建模、仿真和分析方法。结果表明，提出的EOOPN模型是有效的。
Phased Mission Systems (PMS) have several phases with different success criteria. Generally, traditional analytical methods need to make some assumptions when they are applied for reliability evaluation and analysis of complex PMS, for example, the components are non-repairable or components are not subjected to common cause failures (CCF). However, the evaluation and analysis results may be inapplicable when the assumptions do not agree with practical situation. In this article, we propose an extended object-oriented Petri net (EOOPN) model for mission reliability simulation of repairable PMS with CCFs. Based on object-oriented Petri net (OOPN), EOOPN defines four reusable sub-models to depict PMS at system, phase, or component levels respectively, logic transitions to depict complex components reliability logics in a more readable form, and broadcast place to transmit shared information among components synchronously. After extension, EOOPN could deal with repairable PMS with both external and internal CCFs conveniently. The mission reliability modelling, simulation and analysis using EOOPN are illustrated by a PMS example. The results demonstrate that the proposed EOOPN model is effective.