A mixed-elastohydrodynamic lubrication model of a capped-T-ring seal with a sectioned multi-material film thickness in landing gear shock absorber applications

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dc.contributor.authorFeria Alanis, Aaron
dc.contributor.authorSheikh Al-Shabab, Ahmed A
dc.contributor.authorAntoniadis, Antonis F
dc.contributor.authorTsoutsanis, Panagiotis
dc.contributor.authorSkote, Martin
dc.date.accessioned2024-12-16T12:12:19Z
dc.date.available2024-12-16T12:12:19Z
dc.date.freetoread2024-12-16
dc.date.issued2024-11-21
dc.date.pubOnline2024-11-21
dc.description.abstractNumerical investigations of capped T-ring (CTR) seals performance in reciprocating motion for landing gear shock absorber applications are presented. A lubrication model using the Elastohydrodynamic lubrication theory and deformation mechanics is developed in a multi-material contact zone, and a procedure for coupling fluid and deformation mechanics is introduced. By conducting Finite Element Method (FEM) simulations, the static contact pressure is obtained, which subsequently is used within the model developed herein consisting of a modified Reynolds equation and an asperity contact model, to calculate the fluid film pressure, and the deformation of the fluid channel is determined using an elastic deformation model applied to a multi-component multi-mechanical property channel. These computational results are used for estimations of the seal leakage and friction under various conditions. In addition, the influence of asperity orientation is compared with other parameters, such as sealing pressure and piston velocity. A correlation between asperity orientation and leakage was found, and a general trend of reduced leakage with longitudinally oriented asperities was established.
dc.description.journalNameFluids
dc.description.sponsorshipThis work was conducted under the ATI/Innovate UK (Grant No. 263261) Project: Future Landing Gear 2, with Airbus UK as Industrial Lead. The authors also acknowledge funding from EPSRC (Grant No. 2625870).
dc.identifier.citationFeria Alanis A, Sheikh Al-Shabab AA, Antoniadis AF, et al., (2024) A mixed-elastohydrodynamic lubrication model of a capped-T-ring seal with a sectioned multi-material film thickness in landing gear shock absorber applications. Fluids, Volume 9, Issue 12, November 2024, Article number 271
dc.identifier.eissn2311-5521
dc.identifier.elementsID559234
dc.identifier.issn2311-5521
dc.identifier.issueNo12
dc.identifier.paperNo271
dc.identifier.urihttps://doi.org/10.3390/fluids9120271
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23293
dc.identifier.volumeNo9
dc.languageEnglish
dc.language.isoen
dc.publisherMDPI
dc.publisher.urihttps://www.mdpi.com/2311-5521/9/12/271
dc.relation.isreferencedbyhttps://doi.org/10.57996/cran.ceres-2666
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject40 Engineering
dc.subject4017 Mechanical Engineering
dc.subject4012 Fluid mechanics and thermal engineering
dc.subjectmixed-elastohydrodynamic lubrication
dc.subjectcapped T-ring seal
dc.subjectreciprocating seal
dc.subjectlanding gears
dc.titleA mixed-elastohydrodynamic lubrication model of a capped-T-ring seal with a sectioned multi-material film thickness in landing gear shock absorber applications
dc.typeArticle
dcterms.dateAccepted2024-11-13

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