Research on the influence of key structural parameters on piston secondary motion

Abstract Piston secondary motion not only influences the side knocking of piston and frictional loss, but also influence the in-cylinder oil consumption and gas blow-by. An inline four-cylinder common rail diesel engine was chosen as the research object. Dynamic simulation model of piston assembly w...

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Autores principales:	Haixiang Yang, Jilin Lei, Xiwen Deng, Jun Wen, Zhigao Wen, Guofu Song, Rui Mo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f424ad133a2c4c4d8b325447c78a5cc0
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spelling	oai:doaj.org-article:f424ad133a2c4c4d8b325447c78a5cc02021-12-02T19:17:05ZResearch on the influence of key structural parameters on piston secondary motion10.1038/s41598-021-98686-22045-2322https://doaj.org/article/f424ad133a2c4c4d8b325447c78a5cc02021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98686-2https://doaj.org/toc/2045-2322Abstract Piston secondary motion not only influences the side knocking of piston and frictional loss, but also influence the in-cylinder oil consumption and gas blow-by. An inline four-cylinder common rail diesel engine was chosen as the research object. Dynamic simulation model of piston assembly was built based on the piston and cylinder liner temperature field test. The impacts of pinhole offset, liner clearance and piston skirt ovality on piston secondary motion were researched. Based on the surface response method, the influence of multiple factors on friction power loss and slapping energy is estimated. The results indicate that: in-cylinder stress condition of piston will change with its structural parameters, then the secondary motion of piston will be affected as a result. Pinhole offset, liner clearance, piston skirt ovality and the interaction of the latter two all have significant effects on the friction power loss, while the slapping energy is significantly affected by liner clearance. Therefore, the parameters can be designed based on the significance level to optimize the secondary motion characteristics of the piston.Haixiang YangJilin LeiXiwen DengJun WenZhigao WenGuofu SongRui MoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Haixiang Yang Jilin Lei Xiwen Deng Jun Wen Zhigao Wen Guofu Song Rui Mo Research on the influence of key structural parameters on piston secondary motion
description	Abstract Piston secondary motion not only influences the side knocking of piston and frictional loss, but also influence the in-cylinder oil consumption and gas blow-by. An inline four-cylinder common rail diesel engine was chosen as the research object. Dynamic simulation model of piston assembly was built based on the piston and cylinder liner temperature field test. The impacts of pinhole offset, liner clearance and piston skirt ovality on piston secondary motion were researched. Based on the surface response method, the influence of multiple factors on friction power loss and slapping energy is estimated. The results indicate that: in-cylinder stress condition of piston will change with its structural parameters, then the secondary motion of piston will be affected as a result. Pinhole offset, liner clearance, piston skirt ovality and the interaction of the latter two all have significant effects on the friction power loss, while the slapping energy is significantly affected by liner clearance. Therefore, the parameters can be designed based on the significance level to optimize the secondary motion characteristics of the piston.
format	article
author	Haixiang Yang Jilin Lei Xiwen Deng Jun Wen Zhigao Wen Guofu Song Rui Mo
author_facet	Haixiang Yang Jilin Lei Xiwen Deng Jun Wen Zhigao Wen Guofu Song Rui Mo
author_sort	Haixiang Yang
title	Research on the influence of key structural parameters on piston secondary motion
title_short	Research on the influence of key structural parameters on piston secondary motion
title_full	Research on the influence of key structural parameters on piston secondary motion
title_fullStr	Research on the influence of key structural parameters on piston secondary motion
title_full_unstemmed	Research on the influence of key structural parameters on piston secondary motion
title_sort	research on the influence of key structural parameters on piston secondary motion
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f424ad133a2c4c4d8b325447c78a5cc0
work_keys_str_mv	AT haixiangyang researchontheinfluenceofkeystructuralparametersonpistonsecondarymotion AT jilinlei researchontheinfluenceofkeystructuralparametersonpistonsecondarymotion AT xiwendeng researchontheinfluenceofkeystructuralparametersonpistonsecondarymotion AT junwen researchontheinfluenceofkeystructuralparametersonpistonsecondarymotion AT zhigaowen researchontheinfluenceofkeystructuralparametersonpistonsecondarymotion AT guofusong researchontheinfluenceofkeystructuralparametersonpistonsecondarymotion AT ruimo researchontheinfluenceofkeystructuralparametersonpistonsecondarymotion
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Research on the influence of key structural parameters on piston secondary motion

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