Authors: Pavel Gericke

Title of the article: Substantiation of an integrated approach to vibroanalysis in the framework of creating a test procedure for mining equipment

Year: 2017, Issue: 4, Pages: 76-83

Branch of knowledge: Transport, mine and construction engineering

Index UDK: 53.083(430.1)

DOI: 10.26730/1999-4125-2017-4-76-83

Abstract: This work is based on the results of the analysis of the effectiveness of the use of various methods of vibration control as components of a complex diagnostic approach to the analysis of vibration parameters of mining equipment. The principle of the integrated approach to the diagnosis of complex mechanical systems is used to create a modern methodology for testing mining equipment based on the principles of non-destructive testing and predictive modeling. The paper describes the selection of specific methods for vibration analysis, depending on the type of a test object, its operating modes, and the type of tests. The study of the parameters of vibro-acoustic characteristics generated during the operation of the energy-mechanical equipment of technical devices operated in the coal and mining industry of Kuzbass made it possible to carry out a detailed classification of the defects by their type and degree of danger. It has been identified that more than one hundred and twenty diagnostic features correspond to defects in mining equipment by vibration parameters. These features have been formalized on the basis of frequency sets of basic characteristics for the convenience of their use when developing the code for the algorithm for automated control of complex systems. The effectiveness of practical application of concrete sets of diagnostic features, criteria and methodologies for analyzing the parameters of vibroacoustic signals is substantiated in the work. It is shown that only with the wide use of the results obtained with the use of various modern methods of vibration diagnostics, there is an opportunity for effective detection of equipment defects and development of adequate degradation predictive models. It is proved that the created set of diagnostic rules, combining in one go the signs of seven diagnostic approaches, is suitable for detecting defects in energy-mechanical equipment of mining machines based on the analysis of mechanical oscillations generated during their operation. The implementation of the principles of the comprehensive diagnostic approach opens up an innovative direction for the development of unified diagnostic criteria for estimating and predicting the process of changing the actual state of complex mechanical systems. The results of a complex analysis of the parameters of the initial polyharmonic waves can also be effectively applied for the short-term prediction of the degradation of the actual state of assemblies and aggregates of mining equipment.

Key words: vibration analysis resource test methodology energy-mechanical equipment comprehensive diagnostic approach maintenance management

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