A Quantitative Trend Diagnosis Method for Bearing Faults Based on Morphology and Multiscale Arrangement Entropy Mean
A technology based on morphology and diagnostic methods, used in measuring devices, complex mathematical operations, testing of mechanical parts, etc.
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[0074] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0075] figure 1 It is a flow chart of the bearing fault quantitative trend diagnosis method based on morphology and multi-scale permutation entropy value of the present invention. The principle of the bearing fault quantitative trend diagnosis method based on morphology and multi-scale permutation entropy value is described in detail below in combination with the flow chart.
[0076] (1) Use the acceleration sensor to obtain the bearing vibration acceleration signals of different fault degrees as the signal X(t) to be analyzed;
[0077] (2) Perform multi-scale morphological analysis on the vibration signal of the faulty bearing to obtain the denoised signal Xε(t), where ε=1,2,....[fs / fc-2], fs is the sampling frequency, and fc is Fault characteristic frequency. In order to save time and cost, the shape of the structural elements adopts a str...
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