Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas

Detalhes bibliográficos
Autor(a) principal: Xu,Yan
Data de Publicação: 2016
Outros Autores: Guan,Fuling, Huang,He, Ye,Qian
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Aerospace Technology and Management (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462016000400475
Resumo: ABSTRACT This paper addresses the static distortion and stress analysis of inflatable antenna structures subjected to a thermal load, which is a very important type of load experienced by such structures during service in orbit. Non-linear finite element analysis methods for inflatable structures were formulized, and the thermal stress of thin films was considered. The dynamic relaxation method was used to address the singularity problem of the stiffness matrix for the non-pre-stressed membrane structures. When the thermal load is changing, the state of the inflation gas inside the structure chamber varies, as well as the thermal stress of the membrane material. An iterative algorithm was presented to solve this coupling problem between thermal load, the structures, and inflation gas. The presented algorithm has been implemented into an own finite element code of inflatable structures. The thermal deformation and the stress distribution of a 3.2-m inflatable antenna structure were analyzed to illustrate the feasibility of the numerical method. The results indicated that the change in the state of the inflation gas adversely affects the structural performance, so the inflation gas must be considered.
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spelling Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation GasInflatable antenna structuresThermal distortion analysisNon-linear FEMGas state equationABSTRACT This paper addresses the static distortion and stress analysis of inflatable antenna structures subjected to a thermal load, which is a very important type of load experienced by such structures during service in orbit. Non-linear finite element analysis methods for inflatable structures were formulized, and the thermal stress of thin films was considered. The dynamic relaxation method was used to address the singularity problem of the stiffness matrix for the non-pre-stressed membrane structures. When the thermal load is changing, the state of the inflation gas inside the structure chamber varies, as well as the thermal stress of the membrane material. An iterative algorithm was presented to solve this coupling problem between thermal load, the structures, and inflation gas. The presented algorithm has been implemented into an own finite element code of inflatable structures. The thermal deformation and the stress distribution of a 3.2-m inflatable antenna structure were analyzed to illustrate the feasibility of the numerical method. The results indicated that the change in the state of the inflation gas adversely affects the structural performance, so the inflation gas must be considered.Departamento de Ciência e Tecnologia Aeroespacial2016-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462016000400475Journal of Aerospace Technology and Management v.8 n.4 2016reponame:Journal of Aerospace Technology and Management (Online)instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)instacron:DCTA10.5028/jatm.v8i4.625info:eu-repo/semantics/openAccessXu,YanGuan,FulingHuang,HeYe,Qianeng2016-11-25T00:00:00Zoai:scielo:S2175-91462016000400475Revistahttp://www.jatm.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||secretary@jatm.com.br2175-91461984-9648opendoar:2016-11-25T00:00Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)false
dc.title.none.fl_str_mv Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
title Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
spellingShingle Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
Xu,Yan
Inflatable antenna structures
Thermal distortion analysis
Non-linear FEM
Gas state equation
title_short Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
title_full Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
title_fullStr Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
title_full_unstemmed Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
title_sort Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
author Xu,Yan
author_facet Xu,Yan
Guan,Fuling
Huang,He
Ye,Qian
author_role author
author2 Guan,Fuling
Huang,He
Ye,Qian
author2_role author
author
author
dc.contributor.author.fl_str_mv Xu,Yan
Guan,Fuling
Huang,He
Ye,Qian
dc.subject.por.fl_str_mv Inflatable antenna structures
Thermal distortion analysis
Non-linear FEM
Gas state equation
topic Inflatable antenna structures
Thermal distortion analysis
Non-linear FEM
Gas state equation
description ABSTRACT This paper addresses the static distortion and stress analysis of inflatable antenna structures subjected to a thermal load, which is a very important type of load experienced by such structures during service in orbit. Non-linear finite element analysis methods for inflatable structures were formulized, and the thermal stress of thin films was considered. The dynamic relaxation method was used to address the singularity problem of the stiffness matrix for the non-pre-stressed membrane structures. When the thermal load is changing, the state of the inflation gas inside the structure chamber varies, as well as the thermal stress of the membrane material. An iterative algorithm was presented to solve this coupling problem between thermal load, the structures, and inflation gas. The presented algorithm has been implemented into an own finite element code of inflatable structures. The thermal deformation and the stress distribution of a 3.2-m inflatable antenna structure were analyzed to illustrate the feasibility of the numerical method. The results indicated that the change in the state of the inflation gas adversely affects the structural performance, so the inflation gas must be considered.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-01
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=S2175-91462016000400475
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462016000400475
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5028/jatm.v8i4.625
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 Departamento de Ciência e Tecnologia Aeroespacial
publisher.none.fl_str_mv Departamento de Ciência e Tecnologia Aeroespacial
dc.source.none.fl_str_mv Journal of Aerospace Technology and Management v.8 n.4 2016
reponame:Journal of Aerospace Technology and Management (Online)
instname:Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
instacron:DCTA
instname_str Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
instacron_str DCTA
institution DCTA
reponame_str Journal of Aerospace Technology and Management (Online)
collection Journal of Aerospace Technology and Management (Online)
repository.name.fl_str_mv Journal of Aerospace Technology and Management (Online) - Departamento de Ciência e Tecnologia Aeroespacial (DCTA)
repository.mail.fl_str_mv ||secretary@jatm.com.br
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