航空发动机振动信号分析

Study on the Time-Domain Analysis of Aero-engine vibration signal

借助计算机技术运用信号处理的方法对航空发动机飞行试验中所获得的振动数据进行分析处理,提取其振动特征量,能使我们更充分的了解发动机的工作特性,为进一步更好地设计、改进、制造和使用发动机提供必要的依据。本文研究了发动机振动信号的预处理和对信号的时域、幅域分析。为发动机振动信号的处理提供了理论依据。

In virtue of the technique of computer, we can use the signal processing method to deal with the vibrant datas in the Aero-engine flight text. In this way , the characteristic of Aero-engine can be known exactly. This can provide the backup to make more better in the making and improvement in the development of Aero-engine. Pretreatment and Time-domain analysis were studied to the vibration signal of aero-engine in this paper. It provided the sustain to deal with the vibration signal of Aero-engine.