查询词典 to a fault

Due to its complexness and the difficulties in the realization of programming the fault tree models, the construction of a fault tree is usually made manually. With the development of the computer technology, an approach of automatic fault tree construction had been developed in the late 90s.

同时人们围绕故障树的建立也开展了一些研究，建立了一些故障树自动建造方法，然而故障树模型的建立过程中需要考虑众多的因素，相比之下目前的自动建树方法局限性还比较强，在这些方法的基础上的实现的自动建树软件实用性受到很大程度的制约，到目前为止还没有出现能够实际应用的商用软件。

Base on the in-depth analysis into the phase-to-ground fault mechanism and its features, the new concept is presented, which is to change the reference signal for analyzing and processing from the steady signal to the transient signal in a fault case A new principle of the fault feeder line selection with the synthetic logical criterion is presented creatively, which is based on the waveform recognition of the selected time-frequency window.

在深入分析单相接地故障的机理及故障特征的基础上，提出了从基于稳态信号原理转到基于故障暂态信号去分析和处理的新概念；创造性的提出了基于选线时频窗波形识别的综合性逻辑判据的故障选线新原理。

In real flight, multiple sensors of aircraft engine control system may fault at a time. In order to solve this problem, a revised multiple-failure-hypothesis based testing is investigated. This approach uses multiple Kalman filters, and each of Kalman filter is designed based on a specific hypothesis for detecting specific sensors fault, and then uses WSSR (Weighted Sum of Squared Residual) to deal with Kalman filter residuals, and residual signals are compared with threshold in order to make fault detection decisions. The simulation results show that the proposed method can be used to detect multiple sensors soft failures fast and accurately.

一般认为两个以上传感器同时发生故障的概率较小，但实际上不能排除其发生的可能性；提出了一种改进的多重故障假设方法来解决航空发动机控制系统多传感器同时发生软故障的问题，这一方法采用一组卡尔曼滤波器，每个滤波器对应一个被检测传感器的故障模态；采用残差加权二乘方处理滤波残差并与门限值作比较来判断是否发生故障；仿真结果表明，所提出的方法能有效解决多传感器软故障的检测与隔离问题。

According to the features of the fault diagnosis system, a dynamic neural model-output recurrent network, which fits for real-time fault detection is applied to the fault detection of a displacement servo-system.

根据故障诊断系统的特点，采用输出递归神经网络对某液压位置伺服系统进行了故障检测研究。

Simulation results prove that so long as both busbar stray capacitance and sampling frequency satisfy a certain condition, the proposed scheme can judge the fault accurately under various fault conditions. The proposed scheme possesses good selectivity and strong ability of anti-transition resistance, besides, it is more sensitive to the fault occurred at the end of transmission line.

仿真试验表明，只要母线杂散电容和采样频率满足一定的条件，该方法在各种故障条件下均能准确判断故障，具有很好的选择性，并且有很强的抗过渡电阻能力，对末端短路故障的反应灵敏度更高。

Nextly, develop a fault diagnosis data collecting system which solved real-time dataacquisition in the power system fault diagnosis, the data message is analysed in detail andextract the data required in fault diagnosis, this system can not only collect data but alsotransmit the data information to attemper and provide a necessary condition for electric powersystem fault diagnosis On-line.

其次，开发电力系统故障诊断数据信息采集系统，该系统解决了电力系统故障诊断过程中故障特征信息很难实时获取的问题，同时对数据报文进行了详细的分析，提取出故障特征信息，该系统不但可以采集数据，而且还可以将数据信息实时传送至调度，为电力系统大规模在线故障诊断提供了必要的条件。

This intormation is combined in the structure of a Bayesian Graph so as to identify unknown or unpredictable faults. The final experiment results show the intelligent agent can detect network abnormal behavior before a fault actually occurs. Event correlation algorithm for network fault real-time isolation and handle uses object-oriented model method for critical network device and a novel coding scheme, even if in the case of lost alarm and wrong one, it also can identify the fault origin and automatically adapts to changes to network topology to ensure seemless scalability to large and complex network environment. Its performance greatly presides over traditional rule-based event management system.

对学习获得的信息经由贝叶斯图加以组合，从而签别未知的或不可预见的故障，实验结果表明智能监测代理系统能够在故障发生以前检测网络异常行为；用于网络故障问题实时隔离和处理的事件关联算法使用面向对象的针对的网络关键设备的建模方法和新型编码技术，即使在丢失报警和错误报警的情况下，亦能精确地标识故障源，并能自动适应网络拓扑的改变，从而保证无缝地伸缩到专用大型和复杂网络环境中，其性能大大优于传统的基于规则识别的事件关联系统。

This paper describes laminar small faults affected a number of factors to take specific measures :Pre-stack time migration through the use of technology to improve inter-layer tomography for the accurate identification and de脚本ion interlayer fault lay the foundation;Through meticulous depicts dip scanning technology to small fault;Phase-edge technology frequency bands using a broadband seismic data to better identify the fault system.

本文针对影响描述层间小断层的因素采取了多项有针对性的措施：通过采用叠前时间偏移技术改善层间断层成像，为准确识别与描述层间断层奠定基础；通过地层倾角扫描技术来细致刻画小断层；利用优势频带分频相位技术较好地实现了宽频带地震资料的断裂系统识别。

The Hilbert modulus is defined as the sum of the square of a signal and its conjugation.Hilbert modulus is used to covert the fundamental component in original phase current to direct current component,the fault characteristics frequency of bar break is transformed into the twice slip frequency.The problem is solved that fault characteristic component in the spectrum analysis of the current is easily to be blanketed by fundamental component and is hard to highlight fault characteristics.

将Hilbert模量定义为原始信号与其共轭信号的平方和，利用Hilbert模量将原相电流中的基波分量转变为直流分量，原频谱分析的转绕组断条的故障特征分量转变为频率为二倍转差频率的电流分量，决了相电流频谱分析方法中断条故障特征成分容易被基波湮没而难以突出故障特征的问题。

Aiming at the existing method of fault diagnosis and its limitations,a model of expert of fault diagnosis based on rough set and neural network was put forward in the paper,which was used to diagnose fault of double local-fans system in high-gas mine.

针对现有故障诊断方法及其局限性，文章提出了基于粗糙集神经网络的故障诊断专家系统模型，并将该模型应用于高瓦斯矿井双局扇系统的故障诊断中。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。