含回路故障树的解析计算方法--应用限制与求解唯一性
Analytic Methods to Calculate Fault Trees with Loops - Restrictions of Application and Solution Uniqueness
摘要:
故障树分析是可靠性评估的重要任务之一。故障树分析问题被认为是最复杂的问题之一,因为这种树的结构的特点是由相当多的互连。通常采用解析方法,最常用的方法是最小割集的建立和计算。传统的故障树分析方法只适用于无回路的故障树。当TOP或一些中间门作为模型较低级别的另一个门的输入出现时,故障树中可能会出现循环。在故障树计算中,回路的出现是一个有问题的问题。本文讨论了任意环故障树解的唯一性问题。假设基本事件的故障是不可修复的,故障树门可以由两个主逻辑门表示。
英文摘要:
One of the important tasks of the Reliability Estimation is Analysis of the Fault Tree. A problem of Fault Trees analysis is considered one of the most complex ones, since structure of such trees is characterized by a considerable number of interconnections. Usually analytical methods are used and most applicable method is Minimal Cut Sets building and calculation. Classical Fault Tree Analysis methods are applicable only for Fault Trees without loops. Loops can appear in Fault Tree, when a TOP or some intermediate gates appear as input to another gate at a lower level of the model. An occurrence of a Loop has been a problematic issue in a Fault Tree calculation. The article relates to the uniqueness of the solution for the Fault Trees with arbitrary Loops. There are assumed, that failures of the Basic Events are non-repairable and Fault Tree gates may be expressed by two main logic gates.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。