DIAGNOSIS OF VESSEL EQUIPMENT WHEN USING VARIOUS MODELS OF VIBRATION

Abstract

Models of the diagnostic equipment of ship equipment are considered, and specific models of vibration of mechanisms are identified and their expediency to use models of vibration diagnostics is revealed. The most effective methods for the diagnosis of ship engines and mechanisms are vibroacoustic methods are the same as the complete model of the vibration signal. Classes of vibroacoustic methods of analysis were analyzed, according to the step in which of the supersonic factors. The properties of the considered models of random processes characterizing various processes in theory and in the course of experimental studies are considered. Dependent harmonic vibrations consider its deterministic parameters, as well as vibrations with multiple frequencies in total with Gaussian noise forming a non-stationary Gaussian process, and simulation stability, which will manifest itself, as in the case of a deterministic process, taking into account time components. Random impulse processes described by a random impulse process model described by Poisson's law, which is a superposition of randomly generated deterministic or independent of others, were analyzed. Complex additive multiplicative processes, which are determined by many sources, where there are various vibrational forces of different nature, different physical nature. In the considered classification of processes according to statistical characteristics and frequency dependence, probabilistic process models are analyzed, which, together with the mathematical definition of the relationship between various elementary processes and probabilistic characteristics of the parameters of elementary processes, forms models of random processes of various classes. An analysis of the properties of the considered models of random processes allows us to compare the above parameters characterizing the different essence of the process and the ongoing experimental studies. Based on the experiments, various models were confirmed, practical diagnostic methods were developed and obtained.