Parallel axle frequency range analysis. The Hanning Window remains a good combination of leakage reduction and the avoidance of excessive spectral widening. Because of the effect of the transmission function differences, there are only a few differences in the lower invert spectrum sectors. It should be less than 1.OHz, e.g. 0.9 Hz. Adding a different window function can change the effect of the leak and also have a negative effect, i.eGearbox motorThe spectra has become wide and disillusioned, so it is necessary to select, as necessary, a window function for a suitable Induction motor. In order to ensure the accuracy and reliability of spectral and signal processing, the following steps can be used in the physical analysis: N by N=T/h sample capacity: In the numerical analysis, since only limited long-term recording can be intercepted, the accuracy of the analysis remains dependent on the analysis of time length and effective bandwidth B. (v) Decide on the exact length: T = 1/Express p/l1); Estimated frequency range and frequency limit to be addressed in the analysis of the signal: Selected sampling distance h to make the sampling frequency Zz2 positive; from the above discussion of the three smoothing methods, it is clear that the conflict between the resolution of the parallel axle reducer and the requirements of the lower statistical error cannot benefit both. The frequency band is distributed at distance in signal S. When cut in time, other window functions, except for rectangular windows, raise waveform abnormalities. A valid bandwidth is an F seriesGeared motorWhen the energy of the spectra window (average square value) remains unchanged, the non-retrovert window corresponds to the bandwidth of the rectangular window. 2 The reverse RFP allows for the simplification of the expanse of the expanse of the border spectral line into a single spectral line in order to analyse cyclical signals that are difficult to recognize in the observation power spectrum。

Sample length by pattern; statistical error e is expressed by statistical error according to the precision of the power spectral density function of the parallel axle-reducing machine required according to the subject of thereducing machine in series F; (3) the frequency resolution required is estimated to define the large and effective analytical bandwidth B.; (e.g., LAHz, B). So you have to fix the spectrum. ) determine sampling distance based on sample theoremh; as a direct calculation using FFTGearbocThe power spectral density function requires data point N to be 2 integer. In the course of the diagnosis of the failure of the axle bearings of a moving bullet, the vibration signals actually collected often contain a modulated component. When two sensors of the Gearboc are placed in two different positions on the gearbox, the output spectrum is different because of the two transmission functions that are formed by different transmission routes. In the invert spectrum, however, because the input effects of the signal source are separated, the important fractions of the two invert spectrum are almost identical. The re-spectrum of thereducing machine in series F can extract cyclical features from the power spectrum. In spectroscopy, rectangular windows are added when not exaggerating or specifying a Induction motor plus a certain window function. When sampled with DFT for original signal x 1, the sampling capacity N is determined by:

In order to reduce the leakage of the parallel axle-reducing machines, consideration is given to the specter-time cut-off function (data window), i.e., it has a smaller sidealding value compared to the three types of function, the smaller the value of the latter, the smaller the leakage will have a lesser effect on the transformation of the Fouriers. Add the necessary zero point L to keep (N+L) close to 2 integer; determine the number of sampling points: N = T/h; decide on the accuracy of the parallel axle-reducing machine requirement f = peep/lu; decide on the frequency resolution or effective bandwidth of the analysis requirement B. The lack of data points is often encountered in instantaneous shock tests, which requires that data points be added to zero to bring data point N into line with established requirements. The detailed application should include the nature of the subject, if anyInduction motorThe frequency characterization of signal components and vibration sources requires a higher resolution and should be increased in the sampling cycle, using overall smoothing; if the vibration strength and energy distribution are to be understood, a higher estimated accuracy and a lower statistical error should be applied. (c) Cubic bands on both sides of the frequency, thus extending the cycle structure. If the signal S, is modified by the signal S: it will be formed in the power spectrum to make the signal S. In the failure diagnosis of a parallel axle reduction motor bearings, the parallel axle reduction machine re-spectrum method is a common method, the main strength of which is: (1) it is less affected by the transmission route. http://boserlgearreducer.com/product/list-pingxzoujiansuji-cn.html