Tribotronic Analysis of Internal Combustion Engine Compression Ring

The influence of operating conditions of the compression rings on the engine power losses affects confoundedly the design of the Internal Combustion Engines (ICEs). Normalized parameters such as Friction Mean Effective Pressure (FMEP) were used to regulate power losses. The purpose of this work was...

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Autores principales:	Konstantinos Tsatsoulis, Anastasios Zavos, Pantelis G. Nikolakopoulos
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2021
Materias:	compression ring mixed-hydrodynamic lubrication reynolds equation friction mean effective pressure (fmep) matlab automatic control Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/9e3cf622450049faa697c73a29670d5f
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id	oai:doaj.org-article:9e3cf622450049faa697c73a29670d5f
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spelling	oai:doaj.org-article:9e3cf622450049faa697c73a29670d5f2021-11-05T09:31:04ZTribotronic Analysis of Internal Combustion Engine Compression Ring1881-219810.2474/trol.16.125https://doaj.org/article/9e3cf622450049faa697c73a29670d5f2021-06-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/16/2/16_125/_pdf/-char/enhttps://doaj.org/toc/1881-2198The influence of operating conditions of the compression rings on the engine power losses affects confoundedly the design of the Internal Combustion Engines (ICEs). Normalized parameters such as Friction Mean Effective Pressure (FMEP) were used to regulate power losses. The purpose of this work was to create a primary control model of the friction mean effective pressure using an automatic control system. This study incorporates the creation of a mixed-hydrodynamic model for the top compression ring in MATLAB computing environment. The load of ring asperities was predicted using Greenwood-Tripp stochastic model. The pressure distribution along the ring face-width was determined using Reynolds equation through finite difference method with the half-Sommerfeld boundary condition for cavitation outlet zone. This was accomplished by finding the maximum ring pressure for a range of engine speeds and lubricant temperatures. Additionally, the computed results concerning the maximum pressure and the PID controlled characteristics are proposed and compared using a cavitation model. Regarding the automatic system, a PID controller was built using SIMULINK. The numerical results showed that FMEP could be the effective parameter in order to control the engine operation and to proof the tribotronics design in an Internal Combustion Engine.Konstantinos TsatsoulisAnastasios ZavosPantelis G. NikolakopoulosJapanese Society of Tribologistsarticlecompression ringmixed-hydrodynamic lubricationreynolds equationfriction mean effective pressure (fmep)matlabautomatic controlPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 16, Iss 2, Pp 125-137 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	compression ring mixed-hydrodynamic lubrication reynolds equation friction mean effective pressure (fmep) matlab automatic control Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	compression ring mixed-hydrodynamic lubrication reynolds equation friction mean effective pressure (fmep) matlab automatic control Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Konstantinos Tsatsoulis Anastasios Zavos Pantelis G. Nikolakopoulos Tribotronic Analysis of Internal Combustion Engine Compression Ring
description	The influence of operating conditions of the compression rings on the engine power losses affects confoundedly the design of the Internal Combustion Engines (ICEs). Normalized parameters such as Friction Mean Effective Pressure (FMEP) were used to regulate power losses. The purpose of this work was to create a primary control model of the friction mean effective pressure using an automatic control system. This study incorporates the creation of a mixed-hydrodynamic model for the top compression ring in MATLAB computing environment. The load of ring asperities was predicted using Greenwood-Tripp stochastic model. The pressure distribution along the ring face-width was determined using Reynolds equation through finite difference method with the half-Sommerfeld boundary condition for cavitation outlet zone. This was accomplished by finding the maximum ring pressure for a range of engine speeds and lubricant temperatures. Additionally, the computed results concerning the maximum pressure and the PID controlled characteristics are proposed and compared using a cavitation model. Regarding the automatic system, a PID controller was built using SIMULINK. The numerical results showed that FMEP could be the effective parameter in order to control the engine operation and to proof the tribotronics design in an Internal Combustion Engine.
format	article
author	Konstantinos Tsatsoulis Anastasios Zavos Pantelis G. Nikolakopoulos
author_facet	Konstantinos Tsatsoulis Anastasios Zavos Pantelis G. Nikolakopoulos
author_sort	Konstantinos Tsatsoulis
title	Tribotronic Analysis of Internal Combustion Engine Compression Ring
title_short	Tribotronic Analysis of Internal Combustion Engine Compression Ring
title_full	Tribotronic Analysis of Internal Combustion Engine Compression Ring
title_fullStr	Tribotronic Analysis of Internal Combustion Engine Compression Ring
title_full_unstemmed	Tribotronic Analysis of Internal Combustion Engine Compression Ring
title_sort	tribotronic analysis of internal combustion engine compression ring
publisher	Japanese Society of Tribologists
publishDate	2021
url	https://doaj.org/article/9e3cf622450049faa697c73a29670d5f
work_keys_str_mv	AT konstantinostsatsoulis tribotronicanalysisofinternalcombustionenginecompressionring AT anastasioszavos tribotronicanalysisofinternalcombustionenginecompressionring AT pantelisgnikolakopoulos tribotronicanalysisofinternalcombustionenginecompressionring
_version_	1718444305514758144

Tribotronic Analysis of Internal Combustion Engine Compression Ring

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