Diagnostics of Friction Bearings by Oil Pressure Parameters During Cycle-By-Cycle Loading
Failures of friction bearings of the crank mechanism comprise from 5 to 25 % of engine failures. The analysis of the main reasons for failures shows that the dominant reasons are the following: excess of loading conditions; severe operating conditions; non-observance of the periodic maintenance of t...
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| Format: | Article |
| Language: | English |
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University of Kragujevac
2018-06-01
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| Series: | Tribology in Industry |
| Subjects: | |
| Online Access: | http://www.tribology.rs/journals/2018/2018-2/13.pdf |
| _version_ | 1818164253951000576 |
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| author | A.V. Gritsenko E.A. Zadorozhnaya V.D. Shepelev |
| author_facet | A.V. Gritsenko E.A. Zadorozhnaya V.D. Shepelev |
| author_sort | A.V. Gritsenko |
| collection | DOAJ |
| description | Failures of friction bearings of the crank mechanism comprise from 5 to 25 % of engine failures. The analysis of the main reasons for failures shows that the dominant reasons are the following: excess of loading conditions; severe operating conditions; non-observance of the periodic maintenance of the lubrication system; violation of the procedure and conditions of maintenance (contamination, oil residues, etc.); use of poor-quality oils and filters, etc. It is possible to prevent the growth of failures of friction bearings by a continuous monitoring of their complex technical state. For that purpose, we have supposed that the technical state of the crankshaft main bearings of the crank mechanism can be determined by measuring the pressures in the central oil line and calculating their difference in the cycles with the maximum load and without it at different engine crankshaft rotation frequency. As a result of the experimental work, we developed a method for in-place diagnostics of the state of friction bearings of the internal combustion engine, as well as an instrument that provides loading conditions for the bearings of the crank mechanism. We obtained an experimental dependence for determining the wear degree of the crankshaft main journal by the difference in the minimum pressure amplitudes of two adjacent cycles during the operation of the diagnosed cylinder in various modes. |
| first_indexed | 2024-12-11T17:02:31Z |
| format | Article |
| id | doaj.art-f1380537a2964d52a0f5b4070641bba1 |
| institution | Directory Open Access Journal |
| issn | 0354-8996 2217-7965 |
| language | English |
| last_indexed | 2024-12-11T17:02:31Z |
| publishDate | 2018-06-01 |
| publisher | University of Kragujevac |
| record_format | Article |
| series | Tribology in Industry |
| spelling | doaj.art-f1380537a2964d52a0f5b4070641bba12022-12-22T00:57:48ZengUniversity of KragujevacTribology in Industry0354-89962217-79652018-06-0140230031010.24874/ti.2018.40.02.13Diagnostics of Friction Bearings by Oil Pressure Parameters During Cycle-By-Cycle LoadingA.V. Gritsenko0E.A. Zadorozhnaya1V.D. Shepelev2Department of Automobile Transport, Automobile and Tractor Faculty, South Ural State University, 76 Lenin Avenue, Chelyabinsk 454080, RussiaDepartment of Automobile Transport, Automobile and Tractor Faculty, South Ural State University, 76 Lenin Avenue, Chelyabinsk 454080, RussiaDepartment of Automobile Transport, Automobile and Tractor Faculty, South Ural State University, 76 Lenin Avenue, Chelyabinsk 454080, RussiaFailures of friction bearings of the crank mechanism comprise from 5 to 25 % of engine failures. The analysis of the main reasons for failures shows that the dominant reasons are the following: excess of loading conditions; severe operating conditions; non-observance of the periodic maintenance of the lubrication system; violation of the procedure and conditions of maintenance (contamination, oil residues, etc.); use of poor-quality oils and filters, etc. It is possible to prevent the growth of failures of friction bearings by a continuous monitoring of their complex technical state. For that purpose, we have supposed that the technical state of the crankshaft main bearings of the crank mechanism can be determined by measuring the pressures in the central oil line and calculating their difference in the cycles with the maximum load and without it at different engine crankshaft rotation frequency. As a result of the experimental work, we developed a method for in-place diagnostics of the state of friction bearings of the internal combustion engine, as well as an instrument that provides loading conditions for the bearings of the crank mechanism. We obtained an experimental dependence for determining the wear degree of the crankshaft main journal by the difference in the minimum pressure amplitudes of two adjacent cycles during the operation of the diagnosed cylinder in various modes.http://www.tribology.rs/journals/2018/2018-2/13.pdfEngineFriction bearingsDiagnosticsCrankshaft main and connecting rod bearingsPressure parametersDiagnostic parametersTechnical state |
| spellingShingle | A.V. Gritsenko E.A. Zadorozhnaya V.D. Shepelev Diagnostics of Friction Bearings by Oil Pressure Parameters During Cycle-By-Cycle Loading Tribology in Industry Engine Friction bearings Diagnostics Crankshaft main and connecting rod bearings Pressure parameters Diagnostic parameters Technical state |
| title | Diagnostics of Friction Bearings by Oil Pressure Parameters During Cycle-By-Cycle Loading |
| title_full | Diagnostics of Friction Bearings by Oil Pressure Parameters During Cycle-By-Cycle Loading |
| title_fullStr | Diagnostics of Friction Bearings by Oil Pressure Parameters During Cycle-By-Cycle Loading |
| title_full_unstemmed | Diagnostics of Friction Bearings by Oil Pressure Parameters During Cycle-By-Cycle Loading |
| title_short | Diagnostics of Friction Bearings by Oil Pressure Parameters During Cycle-By-Cycle Loading |
| title_sort | diagnostics of friction bearings by oil pressure parameters during cycle by cycle loading |
| topic | Engine Friction bearings Diagnostics Crankshaft main and connecting rod bearings Pressure parameters Diagnostic parameters Technical state |
| url | http://www.tribology.rs/journals/2018/2018-2/13.pdf |
| work_keys_str_mv | AT avgritsenko diagnosticsoffrictionbearingsbyoilpressureparametersduringcyclebycycleloading AT eazadorozhnaya diagnosticsoffrictionbearingsbyoilpressureparametersduringcyclebycycleloading AT vdshepelev diagnosticsoffrictionbearingsbyoilpressureparametersduringcyclebycycleloading |