Vibration abnormity positioning method and device

The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a vibration abnormity positioning method and device. The method includes: carrying out abnormal value removal processing and smoothing processing on the original set to obtain a target set, wherein the original set comprises a plurality of original vibration data, and the target set comprises a plurality of target vibration data; determining a plurality of target subsets according to the target set, the duration of the analysis window and the duration of the sliding step length; determining aPearson correlation coefficient of target vibration data change and moment change in each target subset; determining a fluctuation threshold value according to the plurality of determined Pearson correlation coefficients; and setting the moment corresponding to the Pearson correlation coefficient greater than the fluctuation threshold as the moment of abnormal vibration. According to the embodiment of the invention, the