查询词典 fault

In this dissertation the application of Expert System technique on the fault diagnosis of solid rocket motors is studied based on the basic principle of the fault diagnosis.

本文围绕构造专家系统的关键技术，结合故障诊断的基本理论，对专家系统在固体火箭发动机故障诊断中的应用进行了研究和探索。

"Seismicity at almost all scales is absent from most faults, before any large earthquake on that fault; the San Andreas Fault in Southern California is remarkably somnolent at all magnitudes on the section that tore in the 1857 earthquake."

"大地震在某个断层发生之前，几乎所有标度的地震活动性都存在于大部分断层之外；地震活动性在南加利福尼亚州San Andreas断层上1857年被扯断的那一段前处于一种引人注目的催眠状态。"

Our work shows that, because of the large-scale dextral slip along the Red River fault zone, the northwest Yunnan rift-basin region, the extensive tectonics, are formed on the end since Miocene. The extensive basins have spread southeastwardly from the Miocene to the Quaternary. Typical strike-slip deformation appears at the center segment of fault zone. The granitic body in the late-Yanshan period, the coal-basins and the drainage of Lishe River are dextrally offset in-phase. The dextral displacement since the Pliocene can be 30~32km.

研究表明：中新世以来，红河断裂带大规模右旋走滑运动在北段区主要表现为尾端拉张伸展－构成典型的滇西北裂陷盆地区，且自中新世经上新世至第四纪，伸展型盆地由西北向东南扩展；中段区为典型的右旋走滑变形区，燕山晚期花岗岩体、上新世煤盆及礼社江水系均显示为同步右旋位错。

Moreover, in IDDT diagnosis, the conception of fault feature curve and feature space is proposed to diagnose the fault in the analog and mixed-signal circuit.

此外，对动态电流故障诊断算法提出特征空间和特征曲线的概念，以实现对动态电流信号中的故障信息的有效提取。

The fault diagnosis based on nonlinear spectral analysis is a new fault diagnosis theory.

基于非线性谱分析的故障诊断是一种新的故障诊断理论。

Split-phase current differential protection has excellent capability of fault phase selection no matter whether the fault occurs on the same line or cross over lines.

分相电流差动保护具有优良的性能故障选相无论故障发生在同一行或交叉线。

At present, a lot of research work has been done in the fault diagnosis area and many technologies are proposed. However, there are still many issues remain to be resolved, such as the network diagnosis problem under the circumstances of a great deal of alarm loss and spuriousness alarms and the imprecise fault model.

当前，业界对网络故障诊断已经进行了许多研究工作，从不同的出发点提出了许多故障诊断技术，但仍存在很多问题尚未解决，如在告警丢失、虚假告警较严重和故障模型误差较大的情况下的故障诊断。

Aimed at the problem of choosing the initial value when the Newton method is used to compute the controlling unstable equilibrium point, a practical and rigorous solving scheme was presented: by identifying the controlling load bus of the given fault, and using the Thevenin equivalent circuit to represent the rest of the system at the state of the post disturbance stable equilibrium point, using the steady equivalent circuit to represent the induction motor in composite load, and then using the torque characteristics of induction motor, a point near the CUEP is gained to be the initial value. The second order normal forms was used to approximate the stable manifold of CUEP, and the local approximating boundary of the region of attraction of the post disturbance stable equilibrium point was gained. Then just by simulating the state of the system at the fault clearing time, the transient voltage stability of the system could be determined.

针对采用牛顿法求取故障后系统主导不稳定平衡点(controlling unstable equilibrium point，CUEP)存在的初值选取难题，提出一种实用但不失严谨的解决方案：通过识别给定故障的主导负荷母线，对主导负荷母线以外系统由故障后稳定平衡点处的状态进行戴维南等值，对负荷中感应电动机部分采用其稳态等值电路，再由感应电动机的转矩特性求得CUEP附近的一个点作为近似的CUEP，以此为迭代初值可靠求得CUEP；采用二阶正规型来近似CUEP的稳定流形的方法求得近似的局部吸引域边界；由仿真得到故障清除时刻系统的状态并根据该状态是否位于吸引域内判断系统的暂态电压稳定性。

This paper introduced rough sets data mining method to take potential diagnosis rule from the fault diagnosis decision-making table of steam turbine unit. These rules can offer effective fault diagnosis service for steam turbine unit.

将汽轮机组故障历史数据进行模糊化及离散化处理，构建故障诊断决策表，以决策表作为主要工具，即"知识库"，采用模糊粗糙集数据挖掘方法直接从决策表中提取出潜在的诊断规则，为汽轮机组提供有效的故障诊断。

After the fault cause is finally located, the last step is fault clearing.

在故障原因最终定位以后，就进入了故障处理程序的最后一步——故障排除。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。