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一、振动波形变换设备的振动监测与诊断,振动波形的分析,提取表征状态信息的特征量是最常用的有效方法之一。振动波形的分析主要有两种:一是时域分析,即将振动作为时间t(秒)的函数x(t)来观测。二是频域分析,即按傅立叶变换方法将x(t)变换成频率f(赫芝)的函数X(f)。这个变换关系和过程可用空间简图来表示,见图4.1。
First, the vibration waveform transformation equipment vibration monitoring and diagnosis, vibration waveform analysis, characterization of state information feature extraction is the most commonly used and effective method. Vibration waveform analysis of two main: First, time-domain analysis, the vibration that is as time t (seconds) function x (t) to observe. Second, the frequency domain analysis, that is, Fourier transform method to transform x (t) into the frequency f (Hertz) function X (f). This transform relationship and process space diagram can be used to represent, as shown in Figure 4.1.