| 1. Identificação | |
| Tipo de Referência | Artigo em Revista Científica (Journal Article) |
| Site | mtc-m16.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repositório | sid.inpe.br/marciana/2004/12.10.12.55 (acesso restrito) |
| Última Atualização | 2004:12.10.02.00.00 (UTC) administrator |
| Repositório de Metadados | sid.inpe.br/marciana/2004/12.10.12.55.58 |
| Última Atualização dos Metadados | 2021:02.11.18.10.21 (UTC) administrator |
| Chave Secundária | INPE-11808-PRE/7162 |
| ISSN | 0094-5765 |
| Chave de Citação | FonsecaBainSant:2004:CPTiCo |
| Título | CPU time consideration for LSS structural/control optimization models with different degrees of freedom  |
| Ano | 2004 |
| Mês | feb. |
| Data de Acesso | 30 abr. 2024 |
| Tipo Secundário | PRE PI |
| Número de Arquivos | 1 |
| Tamanho | 187 KiB |
| 2. Contextualização | |
| Autor | 1 Fonseca, Ijar Milagre da 2 Bainum, P. M. 3 Santos, M. C. |
| Identificador de Curriculo | 1 8JMKD3MGP5W/3C9JHD8 |
| Grupo | 1 DMC-INPE-MCT-BR |
| Afiliação | 1 Fonseca IM (reprint author), INPE, Natl Inst Space Res, Space Mech & Control Div, DMC, Avenida Astronautas,1758,POB 515, Sao Jose Dos Campos, SP BR-12201940 Brazil 2 INPE, Natl Inst Space Res, Space Mech & Control Div, DMC, Sao Jose Dos Campos, SP BR-12201940 Brazil 3 Howard Univ, Dept Mech Engn, Washington, DC 20059 USA |
| Revista | Acta Astronautica |
| Volume | 54 |
| Número | 4 |
| Páginas | 259-266 |
| Histórico (UTC) | 2004-12-16 13:47:05 :: sergio -> administrator :: 2006-09-28 22:28:33 :: administrator -> sergio :: 2008-01-07 12:53:42 :: sergio -> administrator :: 2008-06-10 22:28:33 :: administrator -> marciana :: 2011-12-12 11:42:09 :: marciana -> administrator :: 2004 2021-02-11 18:10:21 :: administrator -> marciana :: 2004 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Tipo de Versão | publisher |
| Resumo | This paper focuses on the CPU time investigation when solving an integrated structural/control optimization problem of a large space structure (LSS) subjected to the gravity-gradient torque. The solution of this integrated optimization problem requires sensitivity analysis implying computing the derivatives of the constraints imposed on the optimization problem with respect to the design variables. These derivatives can be obtained by the finite difference approach. However, this procedure may result in a significant consumption of computer time. Depending on the problem complexity the computational cost may become prohibitive. This fact motivates studies to develop semi-analytical formulations so that these derivatives are obtained analytically. However, how much would be the CPU time consumption associated with the accuracy of mathematical models for the optimization problem referred above? This paper tries to clarify this point by solving the integrated structural/control problem for models starting from models derived from a few to several finite elements (FEM). The results show that the CPU time increases exponentially with the numbers of FEM and really becomes prohibitive, at least for the PC CPU Pentium II, 750 MHz, 120 Mbyte memory used to solve the integrated structural/control optimization problem under study in this paper. (C) 2003 Elsevier Ltd. All rights reserved. |
| Área | ETES |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMC > CPU time consideration... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| Idioma | en |
| Arquivo Alvo | cpu time.pdf |
| Grupo de Usuários | administrator marciana sergio |
| Visibilidade | shown |
| Detentor da Cópia | SID/SCD |
| Política de Arquivamento | denypublisher denyfinaldraft24 |
| Permissão de Leitura | deny from all and allow from 150.163 |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/446AF4B |
| Divulgação | WEBSCI; PORTALCAPES; COMPENDEX. |
| Acervo Hospedeiro | sid.inpe.br/banon/2003/08.15.17.40 |
| 6. Notas | |
| Campos Vazios | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel doi e-mailaddress electronicmailaddress format identifier isbn keywords label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |