Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine

The present study aims to analyze the secondary movement of the piston considering the deformations present in the piston skirt, the hydrodynamic lubrication, and the effects of the clearances in the connecting rod bearings. The analysis of the piston movement is performed by developing a mathematic...

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Autores: Duarte Forero, Jorge, Valencia, Guillermo, PALACIOS ALVARADO, WLAMYR
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Colombia
Recursos:Universidad Francisco de Paula Santander
Repositorio:Repositorio Digital UFPS
Idioma:inglés
OAI Identifier:oai:repositorio.ufps.edu.co:ufps/750
Acesso em linha:http://repositorio.ufps.edu.co/handle/ufps/750
https://doi.org/10.3390/lubricants8110097
Access Level:acceso abierto
Palavra-chave:clearances
deformation effects
diesel engine
piston secondary motion
tribological performance
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spelling Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engineDuarte Forero, JorgeValencia, GuillermoPALACIOS ALVARADO, WLAMYRclearancesdeformation effectsdiesel enginepiston secondary motiontribological performanceThe present study aims to analyze the secondary movement of the piston considering the deformations present in the piston skirt, the hydrodynamic lubrication, and the effects of the clearances in the connecting rod bearings. The analysis of the piston movement is performed by developing a mathematical model, which was used to evaluate the dynamic characteristics of the piston movement, the slap force on the piston skirt, the effect of the secondary piston movement on the connecting rod, and the influence of clearances in the connecting rod bearings and in the piston. For the study, the geometric of the crankshaft-connecting rod–piston system of a single-cylinder diesel engine is taken as a reference. The deformation model of the piston was carried out by means of a symmetric finite element model (FEM), which was integrated into the mathematical model of the piston. MATLAB® software (The MathWorks Inc., Natick, MA, USA) is used for the development of model simulations. The obtained results show that during the combustion cycle, there are six changes of direction in the secondary movement of the piston with lateral and angular velocities that can reach a magnitude of 0.13 m/s and 4 rad/s. The lateral and angular movement of the piston during its travel causes the appearance of impacts on the piston skirt with the cylinder liner, which produces an increase of approximately 500 N in the hydrodynamic forces in the connecting rod bearings. The force analysis shows that the range of the maximum magnitudes of these forces is between 1900 N and 3480 N. The increase in clearance between the cylinder liner and the piston skirt (Cpc) causes a greater lateral displacement and an increase in the angle of inclination of the piston. Analysis of the change in connecting rod bearing clearance shows that there are critical values in relation to clearance Cpc. The model presented allows us to analyze the different characteristics of the secondary movement of the piston, which involve the interaction between the piston skirt and the cylinder liner. Additionally, the influence of this movement on the connecting rod bearings is considered. The foregoing can be used as an analysis tool for the study of designs and/or modifications in the engine in such a way that greater durability of the components, reductions in acoustic emissions, and reduction in friction losses are achieved. View Full-TextLubricantsSuiza2021-11-08T15:32:09Z2021-11-08T15:32:09Z2020-10-30Artículo de revistahttp://purl.org/coar/resource_type/c_6501Textinfo:eu-repo/semantics/articlehttp://purl.org/redcol/resource_type/ARTinfo:eu-repo/semantics/publishedVersion32 páginasapplication/pdfapplication/pdfhttp://repositorio.ufps.edu.co/handle/ufps/750https://doi.org/10.3390/lubricants8110097https://www.mdpi.com/2075-4442/8/11/97reponame:Repositorio Digital UFPSinstname:Universidad Francisco de Paula Santanderinstacron:Universidad Francisco de Paula SantanderengLubricantsVol.8 No.11.(2020)3211(2020)18Forero, J. D., Ochoa, G. V., & Alvarado, W. P. (2020). Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine. Lubricants, 8(11), 97.Lubricants© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).info:eu-repo/semantics/openAccessAtribución 4.0 Internacional (CC BY 4.0)2021-11-12T15:03:36Z
dc.title.none.fl_str_mv Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine
title Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine
spellingShingle Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine
Duarte Forero, Jorge
clearances
deformation effects
diesel engine
piston secondary motion
tribological performance
title_short Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine
title_full Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine
title_fullStr Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine
title_full_unstemmed Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine
title_sort Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine
dc.creator.none.fl_str_mv Duarte Forero, Jorge
Valencia, Guillermo
PALACIOS ALVARADO, WLAMYR
author Duarte Forero, Jorge
author_facet Duarte Forero, Jorge
Valencia, Guillermo
PALACIOS ALVARADO, WLAMYR
author_role author
author2 Valencia, Guillermo
PALACIOS ALVARADO, WLAMYR
author2_role author
author
dc.subject.none.fl_str_mv clearances
deformation effects
diesel engine
piston secondary motion
tribological performance
topic clearances
deformation effects
diesel engine
piston secondary motion
tribological performance
description The present study aims to analyze the secondary movement of the piston considering the deformations present in the piston skirt, the hydrodynamic lubrication, and the effects of the clearances in the connecting rod bearings. The analysis of the piston movement is performed by developing a mathematical model, which was used to evaluate the dynamic characteristics of the piston movement, the slap force on the piston skirt, the effect of the secondary piston movement on the connecting rod, and the influence of clearances in the connecting rod bearings and in the piston. For the study, the geometric of the crankshaft-connecting rod–piston system of a single-cylinder diesel engine is taken as a reference. The deformation model of the piston was carried out by means of a symmetric finite element model (FEM), which was integrated into the mathematical model of the piston. MATLAB® software (The MathWorks Inc., Natick, MA, USA) is used for the development of model simulations. The obtained results show that during the combustion cycle, there are six changes of direction in the secondary movement of the piston with lateral and angular velocities that can reach a magnitude of 0.13 m/s and 4 rad/s. The lateral and angular movement of the piston during its travel causes the appearance of impacts on the piston skirt with the cylinder liner, which produces an increase of approximately 500 N in the hydrodynamic forces in the connecting rod bearings. The force analysis shows that the range of the maximum magnitudes of these forces is between 1900 N and 3480 N. The increase in clearance between the cylinder liner and the piston skirt (Cpc) causes a greater lateral displacement and an increase in the angle of inclination of the piston. Analysis of the change in connecting rod bearing clearance shows that there are critical values in relation to clearance Cpc. The model presented allows us to analyze the different characteristics of the secondary movement of the piston, which involve the interaction between the piston skirt and the cylinder liner. Additionally, the influence of this movement on the connecting rod bearings is considered. The foregoing can be used as an analysis tool for the study of designs and/or modifications in the engine in such a way that greater durability of the components, reductions in acoustic emissions, and reduction in friction losses are achieved. View Full-Text
publishDate 2020
dc.date.none.fl_str_mv 2020-10-30
2021-11-08T15:32:09Z
2021-11-08T15:32:09Z
dc.type.none.fl_str_mv Artículo de revista
http://purl.org/coar/resource_type/c_6501
Text
info:eu-repo/semantics/article
http://purl.org/redcol/resource_type/ART
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://repositorio.ufps.edu.co/handle/ufps/750
https://doi.org/10.3390/lubricants8110097
url http://repositorio.ufps.edu.co/handle/ufps/750
https://doi.org/10.3390/lubricants8110097
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Lubricants
Vol.8 No.11.(2020)
32
11(2020)
1
8
Forero, J. D., Ochoa, G. V., & Alvarado, W. P. (2020). Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine. Lubricants, 8(11), 97.
Lubricants
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución 4.0 Internacional (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución 4.0 Internacional (CC BY 4.0)
dc.format.none.fl_str_mv 32 páginas
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Lubricants
Suiza
publisher.none.fl_str_mv Lubricants
Suiza
dc.source.none.fl_str_mv https://www.mdpi.com/2075-4442/8/11/97
reponame:Repositorio Digital UFPS
instname:Universidad Francisco de Paula Santander
instacron:Universidad Francisco de Paula Santander
instname_str Universidad Francisco de Paula Santander
instacron_str Universidad Francisco de Paula Santander
institution Universidad Francisco de Paula Santander
reponame_str Repositorio Digital UFPS
collection Repositorio Digital UFPS
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score 15,198674

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