Its example shows the information such as the fault diagnosis time part, diagnosis object, alarming position, and the example features.
其实例说明部分含故障的诊断时间、诊断对象、报警位置及实例特征等信息。
These analysis method in fault diagnosis process can play an important role, but Fourier analysis method is only suitable for analysis of the continuous, the steady time signal.
这些分析方法在故障诊断过程中起到了重要的作用,但傅立叶分析方法只适合于分析连续的、平稳的时域信号。
Then the time domain analysis methods and frequency domain analysis methods which are frequently used for fault diagnosis have been discussed.
其次论述了常用的故障诊断方法,即时域分析方法和频域分析方法。
The combination of fault diagnosis expert system and ATS improves the efficiency of looking for fault points, decreases the system maintenance time.
故障诊断专家系统和自动测试系统的结合提高了查找故障点的效率,进一步缩短了系统维护时间。
Engineering practice indicates that the Short Time Vector-Spectrum is a new and usable method for rotary machinery fault diagnosis.
工程实践应用表明:短时矢谱分析对于旋转机械故障诊断是一种新的、较为实用的信息融合方法。
At the same time, a method of fault diagnosis is dealt with in detail.
同时还探讨了故障诊断的新方法。
Online identification algorithm is developed for railway cars system parameters to realize the scheme for condition monitoring and fault diagnosis system in real time.
为客车行车安全监测诊断系统实时实现上述方案,推导了铁道车辆系统参数的在线辨识算法。
At present, fault diagnosis method of hydraulic turbine governing system has many disadvantages such as long time need and low accurate ratio.
已有水轮机调速系统故障诊断方法存在诊断时间长、准确率低等缺点。
In this paper, time series bi-spectrum analysis for fault diagnosis of speed-regulating valve is proposed to study a new fault detection method for the hydraulic system.
研究液压系统的一种新的故障检测方法,利用时间序列双谱分析实现调速阀故障诊断。
The fault was rightly confirmed, and the diagnosis time for fault was decreased.
故障定位准确,缩短了故障诊断时间。
A fault detection and diagnosis method based on the rule and time variation was presented based on the normal diagnostic expert system.
根据航天器推进系统的时变性特点,在规则的专家系统方法基础上,提出了推进系统面向时态的故障检测和诊断方法。
A new approach to fault diagnosis of nonlinear systems, which USES multistep prediction of time series based on neural network, is presented in this paper.
提出一种新的基于神经网络多步时序预测的非线性系统故障诊断方法。
The unified formula of testing set for multiple stuck fault in digital system is proved. The constant is contained within the unified formula to shorten the time of fault diagnosis.
证明了数字系统内部多重固定故障状态下的测试集统一公式,因其包含常数而缩短了故障诊断的时间。
By using right expression of knowledge and fuzzy reasoning, this approach improves the efficiency and real-time capability of fault diagnosis and achieves a satisfied result in industrial practice.
同时采用合理的知识表达方式和模糊推理机制提高了诊断的求解效率与实时性,并在实践中取得了良好的效果。
The time domain identification of model parameters of rotor bearing systems is helpful for condition monitoring and fault diagnosis of rotating machines.
轴承-转子系统模态参数时域识别对于回转机械的状态监测与故障诊断具有重要意义。
The phenomena of misinformation and failing to report in fault diagnosis affect directly the quality of diagnosis, meanwhile, fault diagnosis on line demands real time.
故障诊断中的误报和漏报现象直接影响诊断的准确率,同时在线故障诊断又要求很强的实时性。
The application shows that it can analyze the change of the short-time energy of vector signals as frequency and time change, being applicable to the fault diagnosis of rotational machinery.
研究表明,短时矢功率谱可以对矢量信号的短时能量随频率、时间等的变化过程作出分析,可以应用于旋转机械故障诊断实践中。
In this paper, several time domain waveforms of vibration signal and its identification method in mechanical fault diagnosis are analysed.
本文主要论述了机械故障诊断中,几类振动信号时域波形的分析与识别方法。
Infrared thermal imaging technology can quickly make on-line monitoring and diagnosis of overheating fault of electrical equipment by real-time non-contact method.
红外热成像技术能快速、实时地采用非接触手段,在线监测和诊断出电气设备的大多数过热故障。
This paper emphasizes the total software frame of the fault diagnosis system, and the implementation of its real-time data collection module.
这里着重介绍智能故障诊断系统的软件框架的设计以及实时数据采集部分的设计、实现方法。
The spacecraft's shortcoming in design and manufacture will emerge in the thermal balance test, so the real-time fault diagnosis is essential.
航天器在热平衡试验中经常会暴露设计制造上的缺陷,因此有必要对它进行实时的故障诊断。
In the view of feature signal extraction, the local wave time-frequency analysis and information entropy were used to deal with fault diagnosis.
从特征信号提取的角度出发,采用局域波时频分析和信息熵结合的方法进行往复式压缩机故障诊断。
The test results indicate that the fault diagnosis system designed with the virtual DCS-based simulation system realizes the real-time fault diagnosis and accident prediction of the power plant.
对诊断系统的调试结果表明:基于虚拟dcs的仿真系统设计的故障诊断系统实现了火电厂的实时故障诊断与事故预报。
Modular mixture programming of C language arid assemble language is adopted in the system software, which greatly improves real-time properties and accuracy of fault diagnosis of asynchronous motor.
该系统软件采用模块化的C语言和汇编语言混合编程,显著提高了异步电机故障诊断的实时性和准确性。
At the same time, in the measured machine, torque measuring instrument can be watch-instrument in the routine circulation, fault - diagnosis and checking instrument in the autocontrol system.
同时,在受试机械中,转矩测量系统可作为日常运行的监视装置,起到故障诊断的作用或可用做自动控制系统中的检测装置。
Consequently, the circuit is very accurate and can realize real-time online fault diagnosis.
该电路具有较高的识别精度,可以实现实时在线的故障诊断。
Generator fault diagnosis system plays an important guarantee role on the safe production of electric power, and at the same time it also has great social benefits and economic benefits.
发电机故障诊断系统,对电力安全生产起着重要保障作用,同时还具有重大的社会效益和经济效益。
Results of the testing example prove that the approach proposed is correct, effective and has potential for application of real-time fault diagnosis.
算例测试结果表明所提出的故障诊断模型正确、方法有效,且在实时故障诊断的应用上具有很好的潜力。
The fault diagnosis system consists several parts: the real-time diagnosis system of TCU that based on CVT.
无级变速箱CVT汽车自诊断系统由几个部分组成:TCU电路板上的针对CVT汽车实时的诊断系统;
Then, an observer bank of autoregressive time series models based on multi-component neural-network architecture is used for model diagnosis of rotor fault vibration signals.
最后根据该方法组成了一个自回归时间序列模型库,用于转子故障的模型诊断中。
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