Analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systems
Introduction/purpose: The paper presents the application of modern methods in the diagnostics of sliding bearings and the analysis of influencing factors that can cause errors in such an application. Possibilities to determine with certainty when and where problems affect sliding bearings during...
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University of Defence in Belgrade
2020-10-01
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doaj-109fb8e984fa4fb2b5ebb044cf24eab82020-11-25T03:34:42ZengUniversity of Defence in BelgradeVojnotehnički Glasnik0042-84692217-47532020-10-0168484587610.5937/vojtehg68-27265Analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systemsNikola P. Žegarac0https://orcid.org/0000-0002-1766-8184Serbian Academy of Inventors and Scientists, Belgrade, Republic of SerbiaIntroduction/purpose: The paper presents the application of modern methods in the diagnostics of sliding bearings and the analysis of influencing factors that can cause errors in such an application. Possibilities to determine with certainty when and where problems affect sliding bearings during system operation are presented. It is also shown how the system will continue to function over time. Causes of failures and the manner of their elimination are predicted, as well as the time for planned maintenance of technical systems. Method: The new method solves the problem of sliding bearing diagnostics by measuring the dynamic trajectories of the sleeve in the sliding bearing and by measuring vibration parameters on the inner and outer surfaces of the technical system. The dynamic trajectories of the bearing sleeve are measured with non-contact probes; therefore, the centering of probes in relation to the geometric center of the bearing is very important. Vibration parameters, directly related to the clearance in the sliding bearing, are measured on the inner and outer surfaces of the system. The choice of vibration parameters and measuring points is very important. This method has a number of advantages over other diagnostic methods, as it is easy to access measuring points. Results: By measuring the dynamic trajectory of the sleeves in the plain bearing and vibration parameters on the inner and outer surfaces, the bearing clearance quantities are determined, including: normal condition, initial clearance size, its further increase, bearing clearance sizes, and the moment when the condition parameters are close to the upper limit of the permissible bearing clearance. Conclusion: New diagnostic methods and monitoring systems can be widely applied to: internal combustion engines, all piston machines, hydroelectric power plants, thermal power plants, processing plants, and many other systems.https://scindeks-clanci.ceon.rs/data/pdf/0042-8469/2020/0042-84692004845Q.pdftechnical diagnosticssliding bearingbearing clearancebearing wearbearing sleevedynamic trajectory |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nikola P. Žegarac |
spellingShingle |
Nikola P. Žegarac Analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systems Vojnotehnički Glasnik technical diagnostics sliding bearing bearing clearance bearing wear bearing sleeve dynamic trajectory |
author_facet |
Nikola P. Žegarac |
author_sort |
Nikola P. Žegarac |
title |
Analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systems |
title_short |
Analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systems |
title_full |
Analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systems |
title_fullStr |
Analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systems |
title_full_unstemmed |
Analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systems |
title_sort |
analysis of influencing factors that can cause errors in the application of modern methods of sliding bearing diagnostics in machine and electrical systems |
publisher |
University of Defence in Belgrade |
series |
Vojnotehnički Glasnik |
issn |
0042-8469 2217-4753 |
publishDate |
2020-10-01 |
description |
Introduction/purpose: The paper presents the application of modern
methods in the diagnostics of sliding bearings and the analysis of
influencing factors that can cause errors in such an application.
Possibilities to determine with certainty when and where problems affect
sliding bearings during system operation are presented. It is also shown
how the system will continue to function over time. Causes of failures and
the manner of their elimination are predicted, as well as the time for
planned maintenance of technical systems.
Method: The new method solves the problem of sliding bearing
diagnostics by measuring the dynamic trajectories of the sleeve in the
sliding bearing and by measuring vibration parameters on the inner and
outer surfaces of the technical system. The dynamic trajectories of the
bearing sleeve are measured with non-contact probes; therefore, the
centering of probes in relation to the geometric center of the bearing is
very important. Vibration parameters, directly related to the clearance in
the sliding bearing, are measured on the inner and outer surfaces of the
system. The choice of vibration parameters and measuring points is very
important. This method has a number of advantages over other diagnostic
methods, as it is easy to access measuring points.
Results: By measuring the dynamic trajectory of the sleeves in the plain
bearing and vibration parameters on the inner and outer surfaces, the
bearing clearance quantities are determined, including: normal condition,
initial clearance size, its further increase, bearing clearance sizes, and the
moment when the condition parameters are close to the upper limit of the
permissible bearing clearance.
Conclusion: New diagnostic methods and monitoring systems can be
widely applied to: internal combustion engines, all piston machines,
hydroelectric power plants, thermal power plants, processing plants, and
many other systems. |
topic |
technical diagnostics sliding bearing bearing clearance bearing wear bearing sleeve dynamic trajectory |
url |
https://scindeks-clanci.ceon.rs/data/pdf/0042-8469/2020/0042-84692004845Q.pdf |
work_keys_str_mv |
AT nikolapzegarac analysisofinfluencingfactorsthatcancauseerrorsintheapplicationofmodernmethodsofslidingbearingdiagnosticsinmachineandelectricalsystems |
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1715175908354031616 |