出故障

According on the fault mechanism of driving parts of bear box, and using the multi-resolution feature and time-frequency localization feature of wavelet transform, the fault feature signals are extracted. Besides, the noise interference is eliminated by using available noise eliminating method.

根据齿轮箱传动部件故障机理，利用小波变换多分辨率特性和时频局部化特性，提取出故障特征信号；并利用有效的消噪技术，去除噪声干扰。

From nine-value set operations,especially the operation of convert mapping between sets,various cubetab les have been derived directly.

通过九值集合运算，特别是集合的逆映射，直接导出各种立方表，然后同D 算法一样，对故障的测试立方进行D 驱赶和一致性相交运算，求出故障的测试。

According to analyzing the characteristic of the logic of "and" and "or" gates, this paper derives a conversion rule between the logic of fault tree and the step function. Using this conversion, we can convert fault tree to step function which is easy to calculate by programming in the computer.

通过对故障树中逻辑"与"门和"或"门的特点进行分析，推导出故障树逻辑关系与阶跃函数之间的转换规则，利用该规则可将故障树转化为便于编程求解的函数表达式。

At last a FDD tool is programmed based on ANN with experiment results which formed training stylebook and test stylebook.

论文的最后在实验基础上，整理出故障训练及检验样本，编制了基于人工神经网络的故障诊断程序。

Aim at the bad efficiency of refrigeration, the mixture of air or Freon superfluously was diagnosed as the result faulty source, consistent with the factual system.

针对制冷效果不佳的症状，仿真诊断出故障源为系统中有空气或氟利昂充液量过大的故障，与实际系统相一致。

With sympathetic vibration demodulation of the vibration signal of the low-speed, high-load bearing which is realized by means of generalized harmonic wavelet transformation, the impact information of faulty hearing is extracted, which promises a new and effective method for the fault diagnosis of the bearing.

通过广义谐波小波变换实现低速重载轴承振动信号的共振解调，从而提取出故障轴承的低频冲击信息，为低速重载轴承的故障诊断提供了一种新的有效方法。

As the big circumrotate machine, steamer unit have enormous influence, but because of complexity in the configuration and system of steamer unit, particularity of the running conditions、 steamer unit often malfunction and bring bad influence ,specially the shafting .The experimental equipment is developed to simulate the rotator vibration.

汽轮机组作为大型旋转机械，在电力工业中发挥着举足轻重的作用，但是由于汽轮机组结构和系统的复杂性、运行环境的特殊性，汽轮机组的故障较高，且危害也较大，特别是汽轮机组的轴系是出故障较频繁的部件之一。

In the condition that fault infeed from both terminal is given, the fault point can be found out according to the boundary condition of fault point.

在已知线路任意点的左右侧注入电流的情况下，可以根据故障点边界条件搜索出故障点。

The dissertation analysis different measurement on channel frequency,different vibration signals sets and different location to form each ICA result.With regard to the failure diagnosis of the turbine generator operation,the study has explored the possibilities to detect the failure diagnosis source from the measurement signals.It has also provided sufficient analysis case for the application of separation to detecting failure source on the turbine generator.2.Aiming at the engineering application of overcomplete bases ICA,the dissertation has raised virtual channel on the new method of ICA.It take advantage of some testified knowledge to the constitution of ICA known as, together with other measurement signal to proceed ICA separation,which can increase frequency on the input signal.

分析了以不同测量通道数量、不同振动信号类型组合和不同测点位置组成输入信号的ICA分离效果，并对机组在故障状态下，从测量信号中分离出故障源的可能性进行了探讨，为ICA在汽轮机振动故障源分离方面的应用提供丰富的分析实例。2针对超完备基ICA的工程应用问题，提出附加虚拟通道ICA的新方法，利用某些已经具有先验知识的独立分量构成附加输入信号，与其它测量信号组合在一起进行ICA分离，达到增加输入信号数量的目的。

The system cooperates with local sensor to realize the automatic online fault detection. The main drive element of system is cylinder. Cylinder reciprocates between positions.

针对大中型工业控制系统直接通过人工检测难以及时准确检测出故障点的情况，设计一种在线故障检测系统，采用西门子系列PLC和触摸屏，结合现场传感器实现自动在线故障检测。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。