Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results

The widespread introduction of information technologies in the systems that manage technical fleets, the use of maintenance and repair systems based on risk assessment, is based on the calculation of a large enough number of indicators. Modern locomotives are equipped with systems for monitoring and...

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Autores principales:	Borys Bodnar, Oleksandr Ochkasov, Mykhailo Ochkasov
Formato:	article
Lenguaje:	EN RU UK
Publicado:	PC Technology Center 2021
Materias:	technical condition index informativeness diagnostic parameters principal components hydraulic transmission Technology (General) T1-995 Industry HD2321-4730.9
Acceso en línea:	https://doaj.org/article/0c41f6701a9c44a7a347f375b0757a9c
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spelling	oai:doaj.org-article:0c41f6701a9c44a7a347f375b0757a9c2021-11-04T14:06:30ZDevising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results1729-37741729-406110.15587/1729-4061.2021.242478https://doaj.org/article/0c41f6701a9c44a7a347f375b0757a9c2021-10-01T00:00:00Zhttp://journals.uran.ua/eejet/article/view/242478https://doaj.org/toc/1729-3774https://doaj.org/toc/1729-4061The widespread introduction of information technologies in the systems that manage technical fleets, the use of maintenance and repair systems based on risk assessment, is based on the calculation of a large enough number of indicators. Modern locomotives are equipped with systems for monitoring and diagnosing technical condition. Combining these systems with the Internet of Things and Big Data technologies provides an opportunity to use completely new approaches to fleet management. At the initial stage of the construction of such systems, it is necessary to devise criteria that make it possible to automatically determine the technical condition of a locomotive and its components in order to identify the locomotive in the total fleet that requires maintenance or repair. A procedure has been proposed for calculating the technical condition index of locomotives and their components based on data from monitoring systems. The procedure is based on the formation of latent diagnostic parameters employing the principal component method and on the subsequent calculation of the weight coefficients of these parameters applying the method of hierarchy analysis. The special feature of the proposed procedure is that when calculating the index, those latent diagnostic parameters are used that are derived from the group of control parameters whose weight coefficients are computed using the method of hierarchy analysis without involving experts. This paper reports the results from calculating the informativeness of the diagnostic parameters of load, loss, input, as well as their weight coefficients. The highest information content, from 0.5 to 0.85, is demonstrated by the load parameter; the smallest (0.05‒0.26) ‒ the input parameter. The average value and the dependences of changes in the technical condition index of a hydraulic transmission during the tests have been determined. Analysis of the technical condition index makes it possible to assess the transmission's response to changes in test modes, the dynamics of changes in lossesBorys BodnarOleksandr OchkasovMykhailo OchkasovPC Technology Centerarticletechnical condition indexinformativenessdiagnostic parametersprincipal componentshydraulic transmissionTechnology (General)T1-995IndustryHD2321-4730.9ENRUUKEastern-European Journal of Enterprise Technologies, Vol 5, Iss 3 (113), Pp 37-45 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	technical condition index informativeness diagnostic parameters principal components hydraulic transmission Technology (General) T1-995 Industry HD2321-4730.9
spellingShingle	technical condition index informativeness diagnostic parameters principal components hydraulic transmission Technology (General) T1-995 Industry HD2321-4730.9 Borys Bodnar Oleksandr Ochkasov Mykhailo Ochkasov Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results
description	The widespread introduction of information technologies in the systems that manage technical fleets, the use of maintenance and repair systems based on risk assessment, is based on the calculation of a large enough number of indicators. Modern locomotives are equipped with systems for monitoring and diagnosing technical condition. Combining these systems with the Internet of Things and Big Data technologies provides an opportunity to use completely new approaches to fleet management. At the initial stage of the construction of such systems, it is necessary to devise criteria that make it possible to automatically determine the technical condition of a locomotive and its components in order to identify the locomotive in the total fleet that requires maintenance or repair. A procedure has been proposed for calculating the technical condition index of locomotives and their components based on data from monitoring systems. The procedure is based on the formation of latent diagnostic parameters employing the principal component method and on the subsequent calculation of the weight coefficients of these parameters applying the method of hierarchy analysis. The special feature of the proposed procedure is that when calculating the index, those latent diagnostic parameters are used that are derived from the group of control parameters whose weight coefficients are computed using the method of hierarchy analysis without involving experts. This paper reports the results from calculating the informativeness of the diagnostic parameters of load, loss, input, as well as their weight coefficients. The highest information content, from 0.5 to 0.85, is demonstrated by the load parameter; the smallest (0.05‒0.26) ‒ the input parameter. The average value and the dependences of changes in the technical condition index of a hydraulic transmission during the tests have been determined. Analysis of the technical condition index makes it possible to assess the transmission's response to changes in test modes, the dynamics of changes in losses
format	article
author	Borys Bodnar Oleksandr Ochkasov Mykhailo Ochkasov
author_facet	Borys Bodnar Oleksandr Ochkasov Mykhailo Ochkasov
author_sort	Borys Bodnar
title	Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results
title_short	Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results
title_full	Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results
title_fullStr	Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results
title_full_unstemmed	Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results
title_sort	devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results
publisher	PC Technology Center
publishDate	2021
url	https://doaj.org/article/0c41f6701a9c44a7a347f375b0757a9c
work_keys_str_mv	AT borysbodnar devisingaprocedureforcalculatingthetechnicalconditionindexoflocomotivenodesbasedonmonitoringresults AT oleksandrochkasov devisingaprocedureforcalculatingthetechnicalconditionindexoflocomotivenodesbasedonmonitoringresults AT mykhailoochkasov devisingaprocedureforcalculatingthetechnicalconditionindexoflocomotivenodesbasedonmonitoringresults
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Devising a procedure for calculating the technical condition index of locomotive nodes based on monitoring results

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