Fault diagnosis-based rail transit vehicle bearing residual life prediction method
A rail transit vehicle and fault diagnosis technology is applied in the field of residual life prediction of rail transit vehicle bearings based on fault diagnosis, which can solve problems such as damage to vehicle-related systems, less consideration of the impact of residual life prediction of fault types, and casualties.
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[0097] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
[0098] The method for predicting the remaining life of rail transit vehicle bearings based on fault diagnosis disclosed in the present invention needs to analyze the vibration data collected in real time, and extract features that can clearly represent faults through comprehensive processing of multi-angle features. Fault detection is carried out by utilizing the cyclostationary characteristics of rotating machinery vibration signals, and the multivariate model is used for pattern recognition to judge the fault type accordi...
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