Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , |
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. |
id |
DCTA-1_9f732d5d6768b55b87b4bfdabd7c05e9 |
---|---|
oai_identifier_str |
oai:scielo:S2175-91462016000400475 |
network_acronym_str |
DCTA-1 |
network_name_str |
Journal of Aerospace Technology and Management (Online) |
repository_id_str |
|
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 |
_version_ |
1754732531582763008 |