为了降低全寿命费用和增强飞行安全性，对减速器故障进行检测和故障诊断是非常必要的。
To reduce life cycle cost and to improve flight safety, the detection and diagnosis of gearbox faults is of vital importance.
滚动轴承故障诊断是机械故障检测中一个重要方面。
Fault diagnosis for rolling bearing is an important part of machine failure diagnosis.
针对故障诊断中的检测点优选问题，提出了一种新的检测点故障诊断价值测度方法。
The problem of test node selecting in fault diagnosis is studied based on the diagnosis value measure.
结果表明主成分分析法具有很好的故障检测和故障诊断能力。
The results show that the PCA method has good performance in fault detection and diagnosis.
依据故障点处提供的故障信息量最大，将故障诊断问题转化为寻找最优故障检测点问题。
According to the rule that fault information volume is maximal at fault point, the fault diagnosis problem is transferred into problem on seeking for optimum fault detecting point.
实验结果表明，该故障诊断方法可准确地检测出复杂电子系统中的故障现象。
Experimental results show that the fault diagnosis method can correctly detect the fault phenomena of the complex electronic system.
针对一类非线性系统给出一种基于学习方法的突变故障诊断方法，设计了一个观测器，以此来检测、辨识和诊断一类非线性系统动态系统的故障。
A diagnosis method on abrupt faults of nonlinear system in learning approach is provided by a detector which is designed to detect, identify and diagnose the faults in the dynamic nonlinear system.
描述了一些雷达故障检测与诊断的方法，对故障诊断的一些新技术也作了一些讨论。
Some methods of radar fault detection and diagnosis are presented in this paper. Some new techniques of fault diagnosis are also described.
传感器故障检测在机械故障诊断系统中具有重要意义。
Transducer fault detection plays an important role in the mechanical fault diagnosis system.
弱冲击故障检测是故障诊断中既困难又十分重要的研究课题，是实现故障早期诊断的基本手段。
Detection of weak impact fault is difficult but very important in mechanical fault diagnosis, and it is the major tool for early diagnosis.
实验结果表明，该故障诊断方法可准确地检测出复杂电子系统中的故障现象。
The experimental results depict that this fault diagnosis method can correctly detect the fault phenomena of electronic system.
针对不确定控制系统的故障诊断问题，提出了一种利用滑模观测器进行故障检测与重构的方法。
In response to the fault diagnosis research in uncertain control systems, a method for fault detection and reconstruction using sliding mode observers is proposed.
通过对光电雷达电子部件所有关键信号的实验测试和部件故障树结构分析，阐述了光电雷达电子部件性能检测和故障诊断的实现过程。
The fault diagnosis and property testing process of the electronic component of photovoltaic radar base on the testing of all important signal and analysis of fault trees are detailed introduced.
主要内容如下：对基于主元分析的方法进行了综合的研究：从故障检测、故障诊断、故障重构以及基于核主元分析的故障检测方法。
Completed work is summarized as following: The paper gives a integrated research based on PCA from fault detection, fault diagnosis, reconstruction fault to a new fault detection method based on KPCA.
对于网络中存在的节点瞬时故障，通过时间冗余的检测方法，降低故障诊断的虚警率。
Time redundancy is used to reduce faulty alarm rate for transient faults of nodes in WSNs.
采用了基于频谱分析理论的故障诊断技术对大型减速器进行了在线故障检测。
Applying the malfunction diagnosis technique based on the spectrum analysis theory, the paper makes online malfunction detection for the big-scale reducer.
通过对实际的机车信号检测记录仪记录的数据进行故障诊断实验，表明该模型在机车信号故障诊断中的有效性。
The fault diagnosis experiment with the actual data collected from the cab signal detector shows that the model is effective in cab signal fault diagnosis.
滚动轴承故障诊断是机械故障检测中一个重要方面，共振解调是一种有效分析滚动轴承故障信号的方法。
Fault diagnosis for rolling bearing is the important part of machine failure diagnosis. Resonance-demodulation is one of available methods for gear failure signal diagnosis.
针对飞控系统故障诊断，提出了一种利用动态信息对故障进行检测的新方法。
Aiming at fault detection of flight control system, the article presents a new method of fault detection using dynamic data.
在逻辑门电路测试技术中，可以在泛序测试法基础上建立故障诊断树，用于完成单电路故障的检测与定位诊断。
In the technologys of logic circuit test, we can use diagnosis tree to finish the test of logic element fault.
本文介绍了计算机网络常用故障诊断的工具，并讨论了基于OSI模型的故障检测的常用策略。
This paper introduces the tools for compute network fault diagnosis, and discusses the conventional strategies for network fault diagnosis based on osi model.
通过建立马尔科夫模型，分析了双机系统的可用性，研究了故障检测覆盖率和故障诊断成功率对系统可用性的影响。
The markov model is applied to analyze the influence of fault detection coverage and diagnosis success rate for system availability.
因此，采用先进的故障检测和诊断设备进行故障诊断显得尤为重要。
Therefore, to adapt advanced fault detection and diagnosis equipment become very vital.
在工业生产特别是流程工业中，在进行故障诊断研究时，存在着难以建立精确定量模型的困难，利用检测变量残差的方法进行故障诊断也存在许多困难。
When fault diagnosis is studied in industry, especially in process industry, it is difficult to build precise quantitative models and diagnose faults by variable residual detection.
对基于诊断对象数学模型的鲁棒故障诊断方法展开了深入的研究，并给出了三种鲁棒故障检测设计方法。
After thoroughly researching on the methods of the robust fault detection based on the observer, three robust fault detection design methods are put forward.
本文提出了一种新的故障诊断方法，利用系统的逆检测故障，并对故障源进行唯一定位且求出故障大小。
This paper presents a new approach of fault diagnosis, which makes use of the inversion of system to detect faults and can solely isolate the fault source and can get the magnitude of fault.
应用基于主元分析的故障诊断方法对浮式油轮生产储油卸油系统进行故障检测与诊断研究。
Used fault diagnosis method based on Principal Components Analysis to research the fault monitoring and diagnosis of Floating Production Storage and Off-loading 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。
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。
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.
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