Abstract: Shown results of research correlation dimension of vibration signal in cases of destruction aviation engines support bearings. The relevance of the study is determined by the search for promising solutions to improve the maintenance of aircraft engines. It is established that the correlation dimension of the vibration signal of working and defective bearings are contrast with a significance level 0.002. The scientific significance of the research lies in the statistical substantiation of the application of vibration signal dimension in gas turbine engines support bearings diagnosis systems. The conducted experiment with the use of data from onboard aircraft registration devices confirmed the results of the research.
Index terms: destruction of support bearing, correlation dimension, null hypothesis, contrast of means, significance level.

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