Variable-period integrated signal damping ratio diagnosis method
A technology of integrating signals and diagnostic methods, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of frequency resolution, time domain truncation, increased optimization search calculation, and large error in diagnosis results. , to ensure the diagnosis speed, reduce the amount of calculation, and achieve the effect of fast diagnosis
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[0054] Using a signal generator to generate raw vibration signals x ( t ) = 4 e - ζ 2 π 150.402 t cos ( 2 π 150.402 1 - ζ 2 t ) , Among them: the signal amplitude is 4; the signal damping ratio is 0.005; the natural frequency value of the signal without damping is 150.402. The steps of applying the present invention to implement diagnosis are as follows:
[0055] [1]: Set the signal sampling frequency to 2000Hz, the number of sampling points to 2000 points, start the data acquisition instrument, collect the vibration signal x(t), input it into the computer for analysis,...
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