减速器振动信号的冲击性振动信号往往可以与故障引起的冲击联系在一起，因此冲击性信号可以作为一个故障的表征形式。
Impulsive vibration signals in gearbox are often associated with impulse resulted from faults, and thus, impulsive signals can be used as the symptoms of faults.
并以此为基础运用气路分析原理，选取表征发动机性能参数变化的症兆变量和测量参数，建立了发动机故障诊断小偏差方程。
A fault diagnosis equation for the twin-spool mixed flow turbofan engine was established based on the simulation and gas path analysis.
讨论了相对时相所包含的故障信息及在不同故障种类中的表征。
The features of the fault information included in the relative time phase were discussed, and the appearance of the information from various faults described.
随后以故障树风险分析理论为基础，对故障事件进行建模和定性定量分析，确定表征设备故障特征的信息，提取关键因素。
Furthermore, fault events are modeled and made into analysis based on the risk analysis theory of fault tree. After that equipment failure characters are confirmed and key factors are exacted.
数据存储应用程序内存捕获多个部门或一个完整的数据跟踪可以在设计或表征故障排除媒体的重要密集。
Data Storage applications are memory intensive as capturing multiple sectors or a complete track of data can be important in troubleshooting a design or characterizing media.
不同状态下相同频段信号的小波系数也不相同，因此可用不同频段信号的小波包系数来表征不同信号的特征。依据以上分析给出了一种基于小波包分解的故障特征信息提取方法。
Wavelet packet decomposition technology has been used to analyze the fault signals in ball mill, a kind of fault feature extracting method based on Wavelet packets decomposition is put forward.
不同状态下相同频段信号的小波系数也不相同，因此可用不同频段信号的小波包系数来表征不同信号的特征。依据以上分析给出了一种基于小波包分解的故障特征信息提取方法。
Wavelet packet decomposition technology has been used to analyze the fault signals in ball mill, a kind of fault feature extracting method based on Wavelet packets decomposition is put forward.
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