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Information × Registration Number 0219U003017, 0118U005337 , R & D reports Title Estimation of technical condition of industrial equipment by the methods of cross-spectral analysis of periodically non-stationary stochastic oscillations popup.stage_title Head Yuzefovych Roman, Registration Date 29-01-2019 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 Methods of estimating of the cross-spectral densities of two PCRP signals based on experimental data, as well as their cross-spectral components are considered in the paper. The properties of the introduced functions of coherence are analyzed. The correlogram method which is a generalization of the Blackman-Tukey method was researched. The correlogram method is used for the estimation of the cross-spectral density and the cross-spectral components in the case of related PCRP. For the quantitative description of the relations between the properties of non-stationary PCRP signals, which manifests themselves in the periodic change of their cross-spectral characteristics in time integral coherence function is proposed. With the using of purchased vibration acceleration sensors and the existing vibration diagnostic system JAVIR-70 selected vibration signals was processed. Product Description popup.authors Дзерин Оксана Юріївна Мацько Іван Йосипович popup.nrat_date 2020-04-02 Close