Authors: P.B. Gericke

Title of the article: Vibration analysis of diesel-hydraulic drilling rigs within the framework of the industrial safety expert examination procedure

Year: 2018, Issue: 4, Pages: 11-17

Index UDK: 53.083(430.1)

DOI: 10.26730/1816-4528-2018-4-12-18

Abstract: The urgency of the discussed issue. In this paper, we present some results of the analysis of methodological approaches to the development of common diagnostic criteria suitable for assessing the actual state of drilling rigs and developing predictive degradation models. The main aim of the study: To generalize the results of the analysis of the parameters of mechanical oscillations generated during the operation of electromechanical equipment of drilling rigs. This will allow to classify the defects in this equipment by basic groups and to formalize diagnostic features for the convenience of their use when developing the code for the algorithm for automated control of complex systems by frequency sets of diagnostic features. It is shown that in the conditions of the planned preventive maintenance system operating at the coal and mining enterprises of Kuzbass until now, the priority should be given only to short-term predictive mathematical models that make it possible to estimate the probability of emergency failures of equipment for the near future. Develop an algorithm for creating common diag-nostic criteria suitable for assessing the actual state of drilling rigs. The methods used in the study: Within the framework of the work, the necessity of using the results of an integrated approach to the diagnosis of machine aggregates based on the parameters of vibration generated during their operation is substantiated. This approach implies the use of several diagnostic methodologies, including spectral analysis, spectral envelope analysis, wavelet transform, and analysis of the rotor aggregate run-out characteristics. It is shown that a comprehensive approach to diagnostics by vibration parameters opens wide opportunities for timely diagnosis of defects in equipment of mining machines, including those at the stage of nucleation. The results: The results of the conducted scientific researches categorically prove the principal possibility of creating a group of common diagnostic criteria for the effective detection of all inherent defects in drilling rigs of electromechan-ical equipment. The implementation of these criteria in practice as elements of the maintenance system of the actual technical condition will improve the management efficiency of maintenance of complex mechanical systems and to predict the change in the actual state of mining machines.

Key words: vibration analysis industrial safety expert examination a single diagnostic criterion predictive modeling diesel-hydraulic drilling rigs

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