Rolling bearing fault diagnosis method based on parallel feature learning and multi-classifier
A rolling bearing and multi-classifier technology, which is applied in the automatic fault diagnosis of rotating machinery, in the field of intelligent diagnosis of rolling bearing faults based on parallel feature learning and integrated multi-classifiers, can solve the problem of low accuracy of model diagnosis, poor robustness, and failure to screen out Deep features and other issues
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[0041] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:
[0042] refer to figure 1 , the present invention comprises the following steps:
[0043] Step 1) Obtain training sample set and test sample set
[0044] A total of 12 fault types and 3600 vibration time-domain signals of rolling bearings are collected through the data acquisition system as data sets, 2400 of which are used as training sets, and the remaining 1200 data are used as test sets, as follows:
[0045] The vibration time-domain signals used in this embodiment are all from the bearing vibration time-domain signals collected by the bearing accelerated life test bench PRONOSTIA. The platform consists of three parts: drive module, load module and data acquisition module. The main function of the test device is to provide signals of different fault types. The main components of the test device include a drive motor, a torque sensor and a...
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