本文提出了一种基于故障树分析和统计概率的模块化专家系统,作为此大型指挥控制系统电路的故障实时监测之用。
A modularization expert system based fault-tree analysis and statistical probability for real time fault detection of large anfractuous circuit is proposed in this paper.
核电站的安全可靠是其运行的第一要素,故障树分析是核电站概率安全评价的重要方法。
Safety and reliability are always the first essential factors for operation of nuclear power stations. Fault tree analysis is an important way for the probabilistic safety assessment.
用模糊数表示活齿传动中各事件发生的概率,对摆动活齿传动系统进行了模糊故障树分析。
The probability of event occurrence in a movable teeth drive is described by fuzzy number. The fuzzy fault tree analysis of a swing movable teeth transmission system is conducted.
基于系统的状态划分,以统计理论的观点分析了容错控制系统中的故障概率、容错能力和可靠性问题。
The fault probability, the degree of fault tolerance and problem of reliabilty in the fault tolerant control system are analyzed in the view of statistics.
由于试验数据和训练数据有限,传统的故障树分析难以对“卡管”事故原因及出现概率做出准确评价。
Because of the limitation of test and training data, the traditional fault tree analysis (FTA) method cannot provide accurate diagnosis.
利用二元决策图(BDD)中的B—割集和节点概率,提出了基于BDD的关联故障树定量分析新算法。
By the B-cut sets and the probabilities of the nodes of Binary Decision Diagrams (BDD), a new quantitative analysis algorithm of coherent fault tree based on BDD is presented in this paper.
将结构概率设计方法与系统可靠性分析方法相结合,采用耗损故障分析模型,对系统的可靠性特征和寿命特征进行了研究。
According to the fault model analysis method, system reliability model for structure is presented based on structure probability design. The life and reliability characteristic measures are studied.
通过对各部件多维故障特征参量的预测和故障模糊评判,可以自动分析出部件存在的故障及可能性概率。
Potential faults of parts and their probability will be analyzed automatically through the forecast of Multidimensional faulty characteristic parameters and fuzzy assessment.
因果图理论是可以进行故障分析的概率推理方法,但是缺乏对故障模式的重要性的分析。
Causality diagram methodology is a probabilistic reasoning, which can be applied to fault analysis. However, it lacks analysis on the importance of failure mode.
同时利用贝叶斯网络实现概率推理,便于描述故障特征的变化及对变压器故障原因的快速分析。
At the same time, probability reasoning can be realized by BN, which can be used to describe changes of fault symptoms and analyze fault reasons of transformer.
针对配电网系统的单相高阻接地故障,提出了一种基于概率分析的故障检测与定位方法。
Based on probability analysis, a new method of fault detection and location in distribution network grounding with high resistance is proposed in this paper.
用模糊数表示活齿传动中各事件发生的概率,对摆动活齿传动系统进行了模糊故障树分析。
The probability of event occurrence in a movable teeth drive is described by fuzzy number. The fuzzy fault tree analysis of a swing movab…
分析了系统的故障率特性,确定了系统中各部件最小维修、故障更换、机会更换、预防性更换的概率。
So the characteristics of the units failure rate are analyzed to obtain the probabilities of the minimal maintenance and probabilities of replacement due to failure, opportunistic and preventive.
针对电压稳定概率评估中难以考虑支路故障随机性的问题,提出了基于点估计法的电压稳定分析方法。
The problem of taking random branch outages into account in probabilistic evaluation of voltage stability is studied, and an efficient point estimate method based is proposed.
概率安全分析(PS A)中的故障树分析(FTA)是系统可靠性和安全性分析的工具之一。
The fault tree analysis (FTA) of the probabilistic safety analysis (PSA) is one of the tools for system reliability and safety analysis.
该文研究了当今基于软件实现的忍受故障的几种时钟同步算法:确定性、概率型和统计型同步算法并进行特性分析。
This paper proposes a survey of software fault-tolerant clock algorithms:deterministic, probabilistic and statistical, and also give a analyzing of these three kind of algorithms.
分析了IGP路由恢复时间对IBGP会话的影响,提出一种新的基于IGP路由恢复时间概率分布的IBGP会话故障概率计算方法。
A new approach is proposed to calculate the failure probability of IBGP sessions based on the probability distribution of IGP routing recovery time.
利用概率分析方法研究在实故障源作用下,由函数单元构成的控制系统的可靠性,并给出了系统不可靠度的下界估计。
The reliability of the systems affected by the failure sources is studied and a lower bound of the unreliability is presented.
第3章在对零部件故障浴盆曲线分析的基础上,探讨零部件回收率的变化规律,并通过维修数据仿真模拟零部件回收量分布概率。
The recycling rate of reusable spare parts and spare parts U-shape curve is analyzed in Chapter 3 with simulating distribution by data of after-sale activity.
本文运用逻辑诊断和故障树分析法对300台柴油机的运转状态进行分析,建立柴油机运转危险状态故障树模型,求出在目前水平下危险状态发生的概率为0.000288;
By logical diagnosis and fault tree analysis, the operational condition of 300 diesel engines was analysed and a fault tree model of diesel engines under hazard condition was established.
针对配电网系统的单相高阻接地故障,提出了一种基于概率分析的故障检测与定位方法。
With comparing different methods of grounding and considering different factors, high resistance grounding was selected.
针对配电网系统的单相高阻接地故障,提出了一种基于概率分析的故障检测与定位方法。
With comparing different methods of grounding and considering different factors, high resistance grounding was selected.
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