Damping behavior of synthetic graphite beams

Detalhes bibliográficos
Autor(a) principal: Pardini,Luiz Cláudio
Data de Publicação: 2006
Outros Autores: Levy Neto,Flaminio, Fereira,Jorge Luiz de Almeida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200015
Resumo: The main objective of this work was to obtain the damping factor (xi ) as well as the elasticity modulus (E) of two kinds of synthetic graphite (HLM and ATJ), using the modal analysis technique. Prismatic beams of square section (~ 11 x 11 mm) and length over thickness ratio (L/t) of about 22.7 were tested in the free - free boundary condition. The first four modes of vibration were taken into account in the non-destructive evaluation of the materials. In addition, numerical simulations were also carried out in this investigation. The agreement between the theoretical and the experimental results was quite good. The average values of E and xi for the HLM graphite were 20% and 90% higher, respectively, than those presented by the ATJ graphite, indicating that the HLM graphite has, proportionally, more damping mechanisms than the ATJ graphite.
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spelling Damping behavior of synthetic graphite beamssynthetic graphitemodal analysisvibration dampingThe main objective of this work was to obtain the damping factor (xi ) as well as the elasticity modulus (E) of two kinds of synthetic graphite (HLM and ATJ), using the modal analysis technique. Prismatic beams of square section (~ 11 x 11 mm) and length over thickness ratio (L/t) of about 22.7 were tested in the free - free boundary condition. The first four modes of vibration were taken into account in the non-destructive evaluation of the materials. In addition, numerical simulations were also carried out in this investigation. The agreement between the theoretical and the experimental results was quite good. The average values of E and xi for the HLM graphite were 20% and 90% higher, respectively, than those presented by the ATJ graphite, indicating that the HLM graphite has, proportionally, more damping mechanisms than the ATJ graphite.ABM, ABC, ABPol2006-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200015Materials Research v.9 n.2 2006reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392006000200015info:eu-repo/semantics/openAccessPardini,Luiz CláudioLevy Neto,FlaminioFereira,Jorge Luiz de Almeidaeng2006-06-06T00:00:00Zoai:scielo:S1516-14392006000200015Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2006-06-06T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Damping behavior of synthetic graphite beams
title Damping behavior of synthetic graphite beams
spellingShingle Damping behavior of synthetic graphite beams
Pardini,Luiz Cláudio
synthetic graphite
modal analysis
vibration damping
title_short Damping behavior of synthetic graphite beams
title_full Damping behavior of synthetic graphite beams
title_fullStr Damping behavior of synthetic graphite beams
title_full_unstemmed Damping behavior of synthetic graphite beams
title_sort Damping behavior of synthetic graphite beams
author Pardini,Luiz Cláudio
author_facet Pardini,Luiz Cláudio
Levy Neto,Flaminio
Fereira,Jorge Luiz de Almeida
author_role author
author2 Levy Neto,Flaminio
Fereira,Jorge Luiz de Almeida
author2_role author
author
dc.contributor.author.fl_str_mv Pardini,Luiz Cláudio
Levy Neto,Flaminio
Fereira,Jorge Luiz de Almeida
dc.subject.por.fl_str_mv synthetic graphite
modal analysis
vibration damping
topic synthetic graphite
modal analysis
vibration damping
description The main objective of this work was to obtain the damping factor (xi ) as well as the elasticity modulus (E) of two kinds of synthetic graphite (HLM and ATJ), using the modal analysis technique. Prismatic beams of square section (~ 11 x 11 mm) and length over thickness ratio (L/t) of about 22.7 were tested in the free - free boundary condition. The first four modes of vibration were taken into account in the non-destructive evaluation of the materials. In addition, numerical simulations were also carried out in this investigation. The agreement between the theoretical and the experimental results was quite good. The average values of E and xi for the HLM graphite were 20% and 90% higher, respectively, than those presented by the ATJ graphite, indicating that the HLM graphite has, proportionally, more damping mechanisms than the ATJ graphite.
publishDate 2006
dc.date.none.fl_str_mv 2006-06-01
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=S1516-14392006000200015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392006000200015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392006000200015
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.9 n.2 2006
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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