Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication Theory

Multi-lip reciprocating seals are extensively used in the subject of engineering equipment. However, the current research on the tribology of reciprocating seals mainly focused focuses on the numerical analysis of single-lip seals. In order to study the sealing performance of multi-lip seals, this p...

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Main Authors: Donghong Cheng, Lichen Gu, Yu Sun
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/10/6/483
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author Donghong Cheng
Lichen Gu
Yu Sun
author_facet Donghong Cheng
Lichen Gu
Yu Sun
author_sort Donghong Cheng
collection DOAJ
description Multi-lip reciprocating seals are extensively used in the subject of engineering equipment. However, the current research on the tribology of reciprocating seals mainly focused focuses on the numerical analysis of single-lip seals. In order to study the sealing performance of multi-lip seals, this paper takes double-acting seal (DAS) as the research object, and establishes a multi-lip mixed elastohydrodynamic lubrication (M-EHL) numerical simulation model from the perspective of solid mechanics, fluid mechanics, contact mechanics, and deformation mechanics. The sealing characteristics under different working conditions (sealed pressure, piston rod extension speed, and seal surface roughness) were analyzed by numerical calculation, and the variation trend of friction force corresponding to the experimental results was obtained. The model can provide a modeling guidance basis for the M-EHL characteristic analysis and structural optimization design of multi-lip reciprocating seals in the mechanical field.
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spelling doaj.art-41b5b5bed8334e20a49bfcb024e38c4e2023-11-23T17:39:51ZengMDPI AGMachines2075-17022022-06-0110648310.3390/machines10060483Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication TheoryDonghong Cheng0Lichen Gu1Yu Sun2School of Mechanical and Electrical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Mechanical and Electrical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Mechanical and Electrical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaMulti-lip reciprocating seals are extensively used in the subject of engineering equipment. However, the current research on the tribology of reciprocating seals mainly focused focuses on the numerical analysis of single-lip seals. In order to study the sealing performance of multi-lip seals, this paper takes double-acting seal (DAS) as the research object, and establishes a multi-lip mixed elastohydrodynamic lubrication (M-EHL) numerical simulation model from the perspective of solid mechanics, fluid mechanics, contact mechanics, and deformation mechanics. The sealing characteristics under different working conditions (sealed pressure, piston rod extension speed, and seal surface roughness) were analyzed by numerical calculation, and the variation trend of friction force corresponding to the experimental results was obtained. The model can provide a modeling guidance basis for the M-EHL characteristic analysis and structural optimization design of multi-lip reciprocating seals in the mechanical field.https://www.mdpi.com/2075-1702/10/6/483DAS combined sealreciprocating sealsM-EHLsealing performancehydraulic piston
spellingShingle Donghong Cheng
Lichen Gu
Yu Sun
Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication Theory
Machines
DAS combined seal
reciprocating seals
M-EHL
sealing performance
hydraulic piston
title Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication Theory
title_full Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication Theory
title_fullStr Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication Theory
title_full_unstemmed Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication Theory
title_short Mixed Lubrication Modeling of Multi-Lip Reciprocating Seals Based on Elastohydrodynamic Lubrication Theory
title_sort mixed lubrication modeling of multi lip reciprocating seals based on elastohydrodynamic lubrication theory
topic DAS combined seal
reciprocating seals
M-EHL
sealing performance
hydraulic piston
url https://www.mdpi.com/2075-1702/10/6/483
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AT yusun mixedlubricationmodelingofmultilipreciprocatingsealsbasedonelastohydrodynamiclubricationtheory