介绍了故障树分析法和模糊故障树分析法的基本特点和步骤,重点介绍了故障树的定性分析和定量分析的基本原理。
The basic trait and step of the FTA and the fuzzy fault tree analysis are introduced, especially the basic theory of the qualitative analysis and the quantitative analysis.
研究表明模糊因果图能有效地用于故障分析,比原来的因果图方法具有更大的灵活性和适应性。
The research shows that Fuzzy Causality Diagram is so effective in fault analysis, and it is more flexible and adaptive than conventional method.
针对汽轮机转子故障分类问题,采用模糊数学和自组织特征映射神经网络方法诊断汽轮机转子的故障。
In the light of the problems involved in a steam turbine rotor fault diagnosis proposed in this paper is a new diagnostic method based on a fuzzy self organizing neural network.
该系统采用了故障逆向推理机制、模糊神经网络技术和软件自校准技术,有效地提高了系统的可靠性、灵活性。
Based on the technology of fault converse inference, fuzzy nerve network and software adjusting itself etc, this system's reliability and flexibility is greatly enhanced.
本文提出了专家系统和模糊理论应用到神经网络的容差模拟电路故障诊断方法,尤其对容差电路的软故障诊断做了重点阐述。
This paper presents a new approach of fault diagnosis for tolerance analog circuit, and especially expounds the soft fault diagnosis in tolerance analog circuit.
基于粗糙集、模糊集和贝叶斯最优分类器,提出一种变压器绝缘故障诊断与维护的综合决策模型。
Based on Bayesian optimal classifier, combining with rough set and fuzzy set, a new transformer fault diagnosis and maintenance mode is presented in the paper.
其原理和方法也适用于其它各种活齿传动系统的模糊故障树分析。
The principle and the method in this paper is suitable for the fuzzy fault tree analysis of any other movable teeth transmission system.
针对故障诊断过程,在数据融合与规则融合基础上,提出了灰色融合和模糊融合两种信息融合方法,并给出了并行决策融合模型。
Focused on fault diagnosis, a grey fusion method and a fuzzy fusion method are proposed based on data fusion and criteria fusion. Then the parallel decision fusion model is presented.
在对柴油机故障原因和故障症状之间的关系进行分析的基础上,采用二级模糊综合评判方法对柴油机的故障进行诊断。
On the basis of study of the relation between the symptoms and the causes of diesel engine faults, this paper presents a two level fuzzy comprehensive evaluation method of fault diagnosis.
浅析浅析了目前区分变压器励磁涌流和故障电流的多种原理及存在的不足,提出了利用模糊识别原理来识别变压器励磁涌流的策略。
The paper analyses many theory of the current distinction between transformer inrush current and fault current and their problems and puts forward a method which is using the fuzzy recognition theory.
根据影响第三方损坏因素的情况,采用故障树分析法和模糊综合评判法相结合的数学模型进行评价。
Based on the factors that cause the third party damage, a mathematical model was formulated using a fault tree analysis and a fuzzy comprehensive analysis.
基于模糊逻辑理论和人工神经元网络,提出了将模糊神经网络应用于变压器故障诊断的方法。
Based on fuzzy logic theory and artificial neural networks, the method of the transformer fault diagnosis with fuzzy neural networks is presented.
接下来,本文通过对活性污泥污水处理工艺的故障和运行参数的分析,对污水处理故障诊断模糊专家系统进行了详细设计。
After that, by analyzing the fault types and parameters of operation state for wastewater treatment on activated sludge process, a fuzzy expert system for fault diagnosis is designed in detail.
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.
根据征兆对故障的肯定和否定程度,提出了模糊筛选矩阵,建立了反映故障诊断本质的数学模型。
According to the positive and negative degrees of symptoms to faults, the fuzzy screen matrix was put forward. The mathematical model that reflected the essence of fault diagnosis was set up.
在此基础上给出了矿井机械动态可靠度和故障率的计算方法,指明了模糊信息的实用价值。
On these basis, the author puts forward the method calculating dynamic reliability and fault rate of mine machinery, and demonstrates the practical value of fuzzy information.
根据故障征兆对故障的肯定和否定程度,建立模糊筛选矩阵,从而对旋转机械的振动故障进行诊断。
With the affirming and denying degree to the trouble, sets up fuzzy matrix of screening according to trouble sign, thus diagnose the vibration trouble of rotatory machinery.
叙述一种采用模糊控制理论、故障自诊断等先进技术的新型电镀整流器,该整流器具有较理想的性能和较高的控制精度。
A new type of electroplating rectifier, which the advanced techniques of fuzzy control and fault self-diagnostics are applied in, is presented in this paper.
结合模糊故障诊断理论对铣刨机液压系统常见故障特征进行了分析,确定了系统监测参数和诊断参数,给出了故障的诊断方法。
With the analysis of the hydraulic system common fault features by fuzzy logical fault diagnosis theory, the parameter of the system has been determined, and the practical method has been provided.
本文主要对模糊系统和神经网络技术在模型预测、故障模式分类和智能监测中的应用进行了研究。
In this paper the technologies of model forecasting and the fault model identification and the intelligence monitoring using fuzzy system and neural network are studied.
利用COM和模糊技术开发了电力变压器故障模糊检测和辨别模块,在此基础上设计了模糊诊断系统。
The modules for power transformer fault detection and identification are developed with COM and fuzzy technology. Based on the modules, the fuzzy diagnostic system is design.
对一种基于模糊神经网络的故障诊断方法进行了研究,探讨了模糊神经网络诊断模型和模糊算子选择。
This paper pursues a fuzzy neural networks approach for fault diagnosis and discusses its models and the choice of the fuzzy operators.
文中将故障树分析和模糊综合评判分析相结合,建立了组合分析法,并对抽油泵进行了可靠性分析。
A combination method of the fault tree analysis and fuzzy comprehensive estimation was established to evaluate the reliability of oil well pump.
建立了基于模分量大小和三相及零序电流大小的模糊数学模型,能快速准确的识别振荡中发生的不对称故障。
Establish the fuzzy set based on modulus component, three phases and residual current, which can distinguishing unbalance faults from power swing rapidly and reliably.
探讨了将故障树分析和模糊综合评判分析相结合,建立组合分析法对压缩机环状阀进行可靠性分析的方法和过程。
This paper investigates that fault tree and fuzzy comprehensive estimation combines to establish the combination analysis for the reliability of the ring valve of the piston compressor.
以故障诊断的理论和方法为基础,综合运用人工智能、模糊理论和神经网络理论,对复杂电子装备的故障诊断问题进行了研究。
The paper studies complex electric equipment fault diagnosis based on the theory and method of fault diagnosis by applying the theory of artificial intelligent, fuzzy theory and neural network.
设计了一个简单的人工智能故障诊断系统模型,它包括知识库、模糊推理、神经网络和控制模块等。
A simple artificial intelligence system for fault diagnosis established in this paper. The system consists of knowledge base, fuzzy reasoning module, neural network module and control module.
有效的解决了由于设备系统知识的模糊性所引起的不确定性问题,实现了设备的状态检测和故障诊断。
Indefinite problems caused by knowledge's fuzziness of the equipment are solved effectively, condition monitoring and fault diagnosis of the equipment are realized.
在系统实现中,采用隶属函数来反映故障对象特征的模糊性和模糊关系,基于关系数据库进行知识的模糊表达,实现基于规则的模糊推理。
In the implement of system, we use membership function to mirror faults fuzzy and fuzzy concern, relational database to describe knowledge and rules, and perform ruled-based inference.
在系统实现中,采用隶属函数来反映故障对象特征的模糊性和模糊关系,基于关系数据库进行知识的模糊表达,实现基于规则的模糊推理。
In the implement of system, we use membership function to mirror faults fuzzy and fuzzy concern, relational database to describe knowledge and rules, and perform ruled-based inference.
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