Diagnosis method for impact type failure between rolling bearing and gear based on optimal self-adaptive wavelet filter
A technology of wavelet filter and rolling bearing, which is applied in the direction of impact test, machine/structural component test, instrument, etc., and can solve the problems that engineers are difficult to master the setting essentials, versatility, and difficulties
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[0063] This embodiment is used to verify the performance of the method based on the optimal adaptive wavelet filter of the present invention. Experiments are carried out using a set of measured signals from rolling bearings with known faults. When measuring the signal, the faulty bearing is on the right side of the shaft, which is also called the faulty end; however, the measurement position is deliberately selected on the side where the bearing has not failed, which is also called the non-faulty end. At the non-fault end, the fault signal of the rolling bearing has been greatly attenuated through the indirect transmission process; the purpose of using this measurement method is to verify the superiority of this method over the traditional method when the signal-to-noise ratio is low.
[0064] Figure 3-1 It is the vibration signal diagram of the rolling bearing in the embodiment of the present invention. Figure 3-2 yes Figure 3-1 The vibration signal in the figure 2 Si...
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