Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element Analysis
Pipes are widely used in many industrial and mechanical applications and devices. Although there are many different constructions according to the specific application and device, these can show helical pattern, such as spiral pipes, wire-reinforced pipes/shells, spring-suspension, and so on. Theore...
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Format: | Article |
Language: | English |
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Shahid Chamran University of Ahvaz
2018-11-01
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Series: | Journal of Applied and Computational Mechanics |
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Online Access: | http://jacm.scu.ac.ir/article_13555_735b8e957892a331bb633de8b462dbfc.pdf |
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author | Elisabetta Manconi Sergey Sorokin Rinaldo Garziera Alf Soe-Knudsen |
author_facet | Elisabetta Manconi Sergey Sorokin Rinaldo Garziera Alf Soe-Knudsen |
author_sort | Elisabetta Manconi |
collection | DOAJ |
description | Pipes are widely used in many industrial and mechanical applications and devices. Although there are many different constructions according to the specific application and device, these can show helical pattern, such as spiral pipes, wire-reinforced pipes/shells, spring-suspension, and so on. Theoretical modelling of wave propagation provides a prediction about the dynamic behavior, and it is fundamental in the design process of these structures/devices and in structural health monitoring techniques. However, standard approaches have limitations in terms of difficulties in modelling and impossible computational cost at higher frequencies. In this study, the wave characteristics in waveguides with helical patterns are obtained using a Wave Finite Element (WFE) method. The method is described for a 1D and 2D waveguide with helical properties and it is illustrated by numerical examples. These include the optimization of stop-bands for a fluid-filled pipe with concentrated masses and a cylindrical structure with helical orthotropy. |
first_indexed | 2024-12-11T17:59:09Z |
format | Article |
id | doaj.art-a5770707ca4a4dee949c7739f894c1b4 |
institution | Directory Open Access Journal |
issn | 2383-4536 2383-4536 |
language | English |
last_indexed | 2024-12-11T17:59:09Z |
publishDate | 2018-11-01 |
publisher | Shahid Chamran University of Ahvaz |
record_format | Article |
series | Journal of Applied and Computational Mechanics |
spelling | doaj.art-a5770707ca4a4dee949c7739f894c1b42022-12-22T00:55:58ZengShahid Chamran University of AhvazJournal of Applied and Computational Mechanics2383-45362383-45362018-11-014Special Issue: Applied and Computational Issues in Structural Engineering42042810.22055/jacm.2018.24930.121813555Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element AnalysisElisabetta Manconi0Sergey Sorokin1Rinaldo Garziera2Alf Soe-Knudsen3Dipartimento di Ingegneria e Architettura, Universita degli Studi di Parma, Viale delle Scienze 181/A, 43100 Parma, ItalyDepartment of Materials and Production, Aalborg University, Fibigerstraede 16, DK-9220 Aalborg East, DenmarkDipartimento di Ingegneria e Architettura, Universita degli Studi di Parma, Viale delle Scienze 181/A, 43100 Parma, ItalyVestas Wind Systems A/S, Hedeager 42, DK-8200 Aarhus North, DenmarkPipes are widely used in many industrial and mechanical applications and devices. Although there are many different constructions according to the specific application and device, these can show helical pattern, such as spiral pipes, wire-reinforced pipes/shells, spring-suspension, and so on. Theoretical modelling of wave propagation provides a prediction about the dynamic behavior, and it is fundamental in the design process of these structures/devices and in structural health monitoring techniques. However, standard approaches have limitations in terms of difficulties in modelling and impossible computational cost at higher frequencies. In this study, the wave characteristics in waveguides with helical patterns are obtained using a Wave Finite Element (WFE) method. The method is described for a 1D and 2D waveguide with helical properties and it is illustrated by numerical examples. These include the optimization of stop-bands for a fluid-filled pipe with concentrated masses and a cylindrical structure with helical orthotropy.http://jacm.scu.ac.ir/article_13555_735b8e957892a331bb633de8b462dbfc.pdfWave propagationDispersion curvesHelical structuresStop-bandsPipes |
spellingShingle | Elisabetta Manconi Sergey Sorokin Rinaldo Garziera Alf Soe-Knudsen Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element Analysis Journal of Applied and Computational Mechanics Wave propagation Dispersion curves Helical structures Stop-bands Pipes |
title | Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element Analysis |
title_full | Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element Analysis |
title_fullStr | Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element Analysis |
title_full_unstemmed | Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element Analysis |
title_short | Wave Motion and Stop-Bands in Pipes with Helical Characteristics Using Wave Finite Element Analysis |
title_sort | wave motion and stop bands in pipes with helical characteristics using wave finite element analysis |
topic | Wave propagation Dispersion curves Helical structures Stop-bands Pipes |
url | http://jacm.scu.ac.ir/article_13555_735b8e957892a331bb633de8b462dbfc.pdf |
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