Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring

To solve the practical problem of Stirling engine piston ring, numerical model on friction and lubrication were established based on average Reynolds equation theory. Numerical calculation results show: piston rings are in the mixed lubrication state which gas lubrication film and micro-convex body...

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Autores principales: Songjian Li, Wei Zheng, Wei Xu, Hong Ling
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FR
Publicado: EDP Sciences 2021
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Acceso en línea:https://doaj.org/article/0a190bbf3c47427fa6e3660e305ab56c
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spelling oai:doaj.org-article:0a190bbf3c47427fa6e3660e305ab56c2021-11-08T15:18:56ZNumerical calculation and experimental study on friction and lubrication of Stirling engine piston ring2267-124210.1051/e3sconf/202131302002https://doaj.org/article/0a190bbf3c47427fa6e3660e305ab56c2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/89/e3sconf_isec2021_02002.pdfhttps://doaj.org/toc/2267-1242To solve the practical problem of Stirling engine piston ring, numerical model on friction and lubrication were established based on average Reynolds equation theory. Numerical calculation results show: piston rings are in the mixed lubrication state which gas lubrication film and micro-convex body contact existing simultaneously; contact pressure is 2 orders of magnitude less than gas film pressure; contact pressure is approximately linearly related to mean gas pressure. Simulated test rig was built and experimental results show: high-pressure working gas leak to intermediate chamber through piston rings, and the pressure of intermediate chamber drops sharply at lowest pressure of circulation; piston ring wear increases when rotational speed or working pressure increase. The accuracy of numerical model was proved by experimental phenomena and test data.Songjian LiWei ZhengWei XuHong LingEDP Sciencesarticlepolymer piston ringnumerical calculationcontact modelEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 313, p 02002 (2021)
institution DOAJ
collection DOAJ
language EN
FR
topic polymer piston ring
numerical calculation
contact model
Environmental sciences
GE1-350
spellingShingle polymer piston ring
numerical calculation
contact model
Environmental sciences
GE1-350
Songjian Li
Wei Zheng
Wei Xu
Hong Ling
Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring
description To solve the practical problem of Stirling engine piston ring, numerical model on friction and lubrication were established based on average Reynolds equation theory. Numerical calculation results show: piston rings are in the mixed lubrication state which gas lubrication film and micro-convex body contact existing simultaneously; contact pressure is 2 orders of magnitude less than gas film pressure; contact pressure is approximately linearly related to mean gas pressure. Simulated test rig was built and experimental results show: high-pressure working gas leak to intermediate chamber through piston rings, and the pressure of intermediate chamber drops sharply at lowest pressure of circulation; piston ring wear increases when rotational speed or working pressure increase. The accuracy of numerical model was proved by experimental phenomena and test data.
format article
author Songjian Li
Wei Zheng
Wei Xu
Hong Ling
author_facet Songjian Li
Wei Zheng
Wei Xu
Hong Ling
author_sort Songjian Li
title Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring
title_short Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring
title_full Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring
title_fullStr Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring
title_full_unstemmed Numerical calculation and experimental study on friction and lubrication of Stirling engine piston ring
title_sort numerical calculation and experimental study on friction and lubrication of stirling engine piston ring
publisher EDP Sciences
publishDate 2021
url https://doaj.org/article/0a190bbf3c47427fa6e3660e305ab56c
work_keys_str_mv AT songjianli numericalcalculationandexperimentalstudyonfrictionandlubricationofstirlingenginepistonring
AT weizheng numericalcalculationandexperimentalstudyonfrictionandlubricationofstirlingenginepistonring
AT weixu numericalcalculationandexperimentalstudyonfrictionandlubricationofstirlingenginepistonring
AT hongling numericalcalculationandexperimentalstudyonfrictionandlubricationofstirlingenginepistonring
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