Influence of Fluid on Seal and Assembly of Pipeline Fittings Based on the Multiscale Finite Element Model

Pipeline fittings with ferrules are applied to connect sections of hydraulic pipelines in aircraft, and their reliability and stability are essential. This paper aims at investigating the influence of internal fluid on the sealing characteristics of pipeline fittings by employing the multiscale mode...

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Main Authors: Yangyang Yan, Yaping Fan
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2020/4960734
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author Yangyang Yan
Yaping Fan
author_facet Yangyang Yan
Yaping Fan
author_sort Yangyang Yan
collection DOAJ
description Pipeline fittings with ferrules are applied to connect sections of hydraulic pipelines in aircraft, and their reliability and stability are essential. This paper aims at investigating the influence of internal fluid on the sealing characteristics of pipeline fittings by employing the multiscale model. Changes in the sealing characteristics induced by the fluid pressure switch are studied, and the assembly method under the internal fluid is also explored. The calculated results show that the multiscale model can accurately reflect the changes in the sealing area, and the high-pressure fluid can enhance the sealing reliability. Compared with the contact area, the fluid pressure exerts a greater influence on the change in the area of the high-stress zone. Furthermore, the unrestored sealing area enlarges with the increased maximum fluid pressure, and the change in the area of the high-stress zone is significantly larger than that in the contact area. Moreover, the optimum assembly position of ferrule decreases with the increase in fluid pressure, thus achieving the excellent sealing characteristics.
format Article
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institution Kabale University
issn 1076-2787
1099-0526
language English
publishDate 2020-01-01
publisher Wiley
record_format Article
series Complexity
spelling doaj-art-5077acfa054e46ce9cf7e2e40aafab282025-02-03T05:53:21ZengWileyComplexity1076-27871099-05262020-01-01202010.1155/2020/49607344960734Influence of Fluid on Seal and Assembly of Pipeline Fittings Based on the Multiscale Finite Element ModelYangyang Yan0Yaping Fan1Facility Horticulture Laboratory of Universities in Shandong, Weifang University of Science and Technology, Weifang 262700, ChinaFacility Horticulture Laboratory of Universities in Shandong, Weifang University of Science and Technology, Weifang 262700, ChinaPipeline fittings with ferrules are applied to connect sections of hydraulic pipelines in aircraft, and their reliability and stability are essential. This paper aims at investigating the influence of internal fluid on the sealing characteristics of pipeline fittings by employing the multiscale model. Changes in the sealing characteristics induced by the fluid pressure switch are studied, and the assembly method under the internal fluid is also explored. The calculated results show that the multiscale model can accurately reflect the changes in the sealing area, and the high-pressure fluid can enhance the sealing reliability. Compared with the contact area, the fluid pressure exerts a greater influence on the change in the area of the high-stress zone. Furthermore, the unrestored sealing area enlarges with the increased maximum fluid pressure, and the change in the area of the high-stress zone is significantly larger than that in the contact area. Moreover, the optimum assembly position of ferrule decreases with the increase in fluid pressure, thus achieving the excellent sealing characteristics.http://dx.doi.org/10.1155/2020/4960734
spellingShingle Yangyang Yan
Yaping Fan
Influence of Fluid on Seal and Assembly of Pipeline Fittings Based on the Multiscale Finite Element Model
Complexity
title Influence of Fluid on Seal and Assembly of Pipeline Fittings Based on the Multiscale Finite Element Model
title_full Influence of Fluid on Seal and Assembly of Pipeline Fittings Based on the Multiscale Finite Element Model
title_fullStr Influence of Fluid on Seal and Assembly of Pipeline Fittings Based on the Multiscale Finite Element Model
title_full_unstemmed Influence of Fluid on Seal and Assembly of Pipeline Fittings Based on the Multiscale Finite Element Model
title_short Influence of Fluid on Seal and Assembly of Pipeline Fittings Based on the Multiscale Finite Element Model
title_sort influence of fluid on seal and assembly of pipeline fittings based on the multiscale finite element model
url http://dx.doi.org/10.1155/2020/4960734
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AT yapingfan influenceoffluidonsealandassemblyofpipelinefittingsbasedonthemultiscalefiniteelementmodel