Fault diagnosis method based on adaptive manifold embedding dynamic distribution alignment
An adaptive streaming and fault diagnosis technology, which is applied in the field of mechanical fault diagnosis and machine learning, can solve problems such as data feature distortion and unsatisfactory model diagnosis effect
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[0081] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0082] The present invention is described in detail in conjunction with actual experimental data:
[0083] The experimental data adopts the bearing data set of Case Western Reserve University (CWRU), and the data acquisition system is as follows: figure 1 As shown, the rolling bearing test bench includes a 2-horsepower motor (1hp=746W), a torque sensor, a dynamometer and an electronic control device. Introduce faults in test bearing rollers, inner rings and outer rings by electric discharge machining (EDM), and set different fault sizes. Vibration data is collected using accelerometers.
[0084] In this example, we select the bearing vibration signal with a sampling frequency of...
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