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fault trees analysis
相关语句
  故障树
     Based on the fundamental principle of system reliability analysis, a fault tree with acrylonitrile reactor, the key equipment of acylonitrile reaction section, as the analysis object and the rupture of reactor rupture disk as the top event, is created by fault trees analysis method. Qualitative and quantitative analyses are carried out, obtaining the minimal cutset and probability of the top event.
     应用系统可靠性分析基本原理,以丙烯腈反应工序的核心装置反应器为分析对象,确定反应器在运行过程中的防爆膜破裂事故为顶事件,应用故障树分析方法建立故障树,并对其进行定性和定量分析,得出顶事件最小割集和发生概率。
短句来源
  “fault trees analysis”译为未确定词的双语例句
     The Studies of Electronic Component Fault Diagnosis based on the Fault Trees Analysis and Virtual Instruments
     基于故障树分析及虚拟仪器的电子部件故障诊断研究
短句来源
     In this paper the work process of airplane photovoltaic radar is introduced simply and the design scheme of the electronic equipment fault diagnosis base on the fault trees analysis and virtual instruments is presented.
     本文简要分析了某型飞机光电雷达的工作过程 ,提出了一种基于虚拟仪器技术的光电雷达电子部件故障诊断设计方案。
短句来源
     The fault trees analysis technology is used in the photovoltaic radar electronic equipment fault diagnosis, and the fixed position method of fault component is discussed.
     将故障树分析技术引入光电雷达电子设备故障诊断之中,讨论了故障元件的搜寻定位方法;
     The design scheme of the electronic equipment fault diagnosis base on the fault trees analysis and virtual instruments is presented, and the work process of diagnosis system is detailed introduced.
     提出了一种基于故障树分析和虚拟仪器的电子设备故障诊断设计方案,并阐述了系统的实现过程。
     Fault trees analysis method of electronic equipment of airplane
     机载电子设备故障检测与定位的故障树分析方法
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The method of fault tree analysis is an efficient method for the reliability analysis of complex systems. For evaluating fault tree, first we ought to obtain its minimal cut sets by using a computer. There are many algorithms developed during the last ten years to deal with this problem. Their main goal is to obtain minimal cut sets as quickly as possible using the smallest amount of main core memory. But a lot of difficulties still exist. The method presented by this paper has thoroughly...

The method of fault tree analysis is an efficient method for the reliability analysis of complex systems. For evaluating fault tree, first we ought to obtain its minimal cut sets by using a computer. There are many algorithms developed during the last ten years to deal with this problem. Their main goal is to obtain minimal cut sets as quickly as possible using the smallest amount of main core memory. But a lot of difficulties still exist. The method presented by this paper has thoroughly solved the problem of occupying too much memory space so that it is possible to evaluate a large and complex fault tree on a small computer.Having obtained the minimal cut sets, the next step is to calculate the failure probability. Improving and developing the methods of [5] and [7], this paper presents a method called circular cut transformation which can more easily transform the structure function into exclusive S-O-P form, it also has solved the problem of calculating Boolean Algebra on a compu-!er. The problem of calculating the failure probability of a large and complex system has been solved efficiently.

失效树分析法是用来分析复杂系统可靠性的有效方法。为求解失效树,必先用计算机求出它的最小割集,而过去的一些算法都力求用较高的速度和较少的内存来解决这个问题,但至今仍存在着一些困难。本文提出的求解方法基本上解决了占用内存较多的问题,从而使得可能在小型计算机上处理大型复杂的失效树。本文改进并发展了文献[5、7]中的算法,提出用循环分割变换法将结构函数变换为互不相交的S-O-P型,并解决了用计算机进行相应的多变量逻辑代数的运算,从而有效地解决了大型系统失效概率的计算问题。

The Fault Tree Analysis (FTA) is a new approach to the reliability and risk assessment of complex systems. Its functions have been accepted abroad. A FT and its minimum cut sets of the stock system of the 3150 mm paper machine located in Nanping Paper Factory are presented and some parameters-availability, expected value of failures, MTTR are given by calculating them with J.Fussell's approximate method. The results of qualitative and quantitative analysis and applications of FTA to industry are...

The Fault Tree Analysis (FTA) is a new approach to the reliability and risk assessment of complex systems. Its functions have been accepted abroad. A FT and its minimum cut sets of the stock system of the 3150 mm paper machine located in Nanping Paper Factory are presented and some parameters-availability, expected value of failures, MTTR are given by calculating them with J.Fussell's approximate method. The results of qualitative and quantitative analysis and applications of FTA to industry are briefly dealed with at the end of this paper.

故障树分析(FTA)方法是近十年来获得迅速发展的一种用于复杂系统可靠性分析的新方法。其功用在国外已获公认。本文用FTA法为南平纸厂3150mm纸机的供浆系统建立了故障树,计算了全部最小割集。在失效数据的收集和处理、特殊禁门事件的处理等后,用J.Fussell近似方法计算了该系统的可用度、失效期望值、平均修复时间等可靠性参数。结果与实际基本相符。最后,就FTA的定性和定量分析结果以及应用等问题作了简要讨论。

A new direct method for the large fault tree analysis and a new concept,

本文给出一种新的大系统故障树直接分析法,首次提出最小相关子树概念,有效地减少了分析的计算量。作者按此算法编出DFTA程序,用它可求出多种可靠性参数,而且处理问题能力强,运算速度快,占内存极少。这使在微机上分析大系统故障树成为可能。

 
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