Vehicle bearing fault diagnosis method based on CEEMDAN and APSO-SVM
A technology of APSO-SVM and fault diagnosis, which is applied in the testing of mechanical components, character and pattern recognition, testing of machine/structural components, etc. It can solve the problem of local optimum and cannot dynamically adjust the particle velocity, and achieve the ability of bearing fault diagnosis Strong, strong optimization ability, fast convergence rate
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[0093] Below in conjunction with accompanying drawing, the technical scheme of the present invention is described in further detail:
[0094] The present invention may be embodied in many different forms and should not be considered limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
[0095] This example uses real experimental data for analysis, which is taken from the Bearing Data Center of Western Reserve University. The fault bearing selected for analysis is 6205-2RJEM SKF deep groove ball bearing, and the single-part damage processing is carried out on the fault of the inner ring and the outer ring of the bearing by electric spark technology. The sampling frequency of vibration data is 12000Hz.
[0096] like figure 1 As shown, the fault diagnosis met...
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