Abstract
The article considers the results of qualimetric examination of methods of technical diagnostics of hydraulic systems. The theoretical analysis of methods of technical diagnostics of hydraulic systems is carried out, where their characteristics were studied and the advantages and disadvantages of each method from the list are considered. Also, the criteria that guide the choice of a method of diagnostics of hydraulic systems were determined, a matrix of evaluations of experts to assess the informativeness of methods of technical diagnostics of hydraulic systems. The results of the examination on the criterion “signal / noise” were processed. Thus, according to the results of expert evaluation, the most preferred methods for the diagnosis of hydraulic systems are: the method of diagnosis by the parameters of the working fluid, temporal, vibroacoustic and thermal methods. Use of the chosen diagnostic methods will allow to estimate precisely a technical condition of hydraulic system and its residual technical resource. The classification of methods of technical diagnostics of hydraulic systems on the basis of which the comparative analysis of these methods is executed is presented. Mathematical procedures for processing the matrix of expert estimates using the signal-to-noise criterion are also considered. Based on the results of evaluation of diagnostic methods of hydraulic systems of technological equipment for various purposes using the criterion “signal / noise” a certain combination of methods can be formed, which will be optimal for assessing the technical condition of hydraulic system of a particular technological machine.
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