Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions

Detalhes bibliográficos
Autor(a) principal: Ataabadi,Pouria Bahrami
Data de Publicação: 2014
Outros Autores: Khedmati,Mohammad Reza, Ataabadi,Mostafa Bahrami
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Latin American journal of solids and structures (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014001200001
Resumo: In this study, vibration behavior of orthotropic cylindrical shells with variable thickness is investigated. Based on linear shell theory and applying energy method and using spline functions, free vibration relations are derived for shell with variable thickness and curvature. Frequency parameter and mode shapes are found after solving the frequency Eigenvalue equation. Effects of variable thickness along axial and circumferential directions of the shell on its frequency parameter are studied and compared against each other. Shell thickness is assumed to be varied in a parabolic profile along both directions. Also, frequency parameters for both circular and parabolic curvatures along circumferential direction are investigated and results are compared together. In addition, effect of variable thickness on the mode shapes is studied.
id ABCM-1_bbd092a91c86d5efef275e5a1cbf746c
oai_identifier_str oai:scielo:S1679-78252014001200001
network_acronym_str ABCM-1
network_name_str Latin American journal of solids and structures (Online)
repository_id_str
spelling Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functionsCylindrical shellParabolic curvatureVariable thicknessNatural frequencySpline functionDiscrete methodIn this study, vibration behavior of orthotropic cylindrical shells with variable thickness is investigated. Based on linear shell theory and applying energy method and using spline functions, free vibration relations are derived for shell with variable thickness and curvature. Frequency parameter and mode shapes are found after solving the frequency Eigenvalue equation. Effects of variable thickness along axial and circumferential directions of the shell on its frequency parameter are studied and compared against each other. Shell thickness is assumed to be varied in a parabolic profile along both directions. Also, frequency parameters for both circular and parabolic curvatures along circumferential direction are investigated and results are compared together. In addition, effect of variable thickness on the mode shapes is studied.Associação Brasileira de Ciências Mecânicas2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014001200001Latin American Journal of Solids and Structures v.11 n.12 2014reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/S1679-78252014001200001info:eu-repo/semantics/openAccessAtaabadi,Pouria BahramiKhedmati,Mohammad RezaAtaabadi,Mostafa Bahramieng2014-12-08T00:00:00Zoai:scielo:S1679-78252014001200001Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2014-12-08T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
title Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
spellingShingle Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
Ataabadi,Pouria Bahrami
Cylindrical shell
Parabolic curvature
Variable thickness
Natural frequency
Spline function
Discrete method
title_short Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
title_full Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
title_fullStr Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
title_full_unstemmed Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
title_sort Free vibration analysis of orthtropic thin cylindrical shells with variable thickness by using spline functions
author Ataabadi,Pouria Bahrami
author_facet Ataabadi,Pouria Bahrami
Khedmati,Mohammad Reza
Ataabadi,Mostafa Bahrami
author_role author
author2 Khedmati,Mohammad Reza
Ataabadi,Mostafa Bahrami
author2_role author
author
dc.contributor.author.fl_str_mv Ataabadi,Pouria Bahrami
Khedmati,Mohammad Reza
Ataabadi,Mostafa Bahrami
dc.subject.por.fl_str_mv Cylindrical shell
Parabolic curvature
Variable thickness
Natural frequency
Spline function
Discrete method
topic Cylindrical shell
Parabolic curvature
Variable thickness
Natural frequency
Spline function
Discrete method
description In this study, vibration behavior of orthotropic cylindrical shells with variable thickness is investigated. Based on linear shell theory and applying energy method and using spline functions, free vibration relations are derived for shell with variable thickness and curvature. Frequency parameter and mode shapes are found after solving the frequency Eigenvalue equation. Effects of variable thickness along axial and circumferential directions of the shell on its frequency parameter are studied and compared against each other. Shell thickness is assumed to be varied in a parabolic profile along both directions. Also, frequency parameters for both circular and parabolic curvatures along circumferential direction are investigated and results are compared together. In addition, effect of variable thickness on the mode shapes is studied.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014001200001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014001200001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1679-78252014001200001
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Ciências Mecânicas
publisher.none.fl_str_mv Associação Brasileira de Ciências Mecânicas
dc.source.none.fl_str_mv Latin American Journal of Solids and Structures v.11 n.12 2014
reponame:Latin American journal of solids and structures (Online)
instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron:ABCM
instname_str Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
instacron_str ABCM
institution ABCM
reponame_str Latin American journal of solids and structures (Online)
collection Latin American journal of solids and structures (Online)
repository.name.fl_str_mv Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
repository.mail.fl_str_mv abcm@abcm.org.br||maralves@usp.br
_version_ 1754302887685521408

Registros relacionados