{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/2898"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/2898","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Otimização geométrica de treliças","abstract":"A computer system for automatic optimization of truss geometry is proposed, based upon Fletcher and Reeves algorithm. The system applies to space trusses, with multiple loading conditions and the following constraint types: - Geometric constraints: minimum and maximum values of joint coordinates, joint symmetry and variation of joint positions along fixed lines. - Behavior constraints: allowable member stresses (including buckling) and maximum joint displacements. Methods of structural analysis and the optimizatio algorithm are thoroughly discussed. A flowchart displays the general system organization. ln addition, examples - some of them of structures already built - are included so that the system efficiency can be verified.","abstract_html":"A computer system for automatic optimization of truss geometry is proposed, based upon Fletcher and Reeves algorithm. The system applies to space trusses, with multiple loading conditions and the following constraint types: - Geometric constraints: minimum and maximum values of joint coordinates, joint symmetry and variation of joint positions along fixed lines. - Behavior constraints: allowable member stresses (including buckling) and maximum joint displacements. Methods of structural analysis and the optimizatio algorithm are thoroughly discussed. A flowchart displays the general system organization. ln addition, examples - some of them of structures already built - are included so that the system efficiency can be verified.","abstract_has_math":false,"creators":["Moura, Vinicius Freire"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Segenreich, Solly Andy"],"committee_chairs":[],"committee_members":[],"year":1977,"date_issued":"1977-08","date_published":"1977-08","updated_at":"2026-07-24T01:15:56Z","subjects":["Treliças","Otimização combinatória"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/2898","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Segenreich, Solly Andy"]},{"key":"dc:creator","label":"Author","values":["Moura, Vinicius Freire"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2017-09-22T18:48:10Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:01:43Z"]},{"key":"dc:date.issued","label":"Date","values":["1977-08"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Treliças","Otimização combinatória"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/2898"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["A computer system for automatic optimization of truss geometry is proposed, based upon Fletcher and Reeves algorithm. The system applies to space trusses, with multiple loading conditions and the following constraint types: - Geometric constraints: minimum and maximum values of joint coordinates, joint symmetry and variation of joint positions along fixed lines. - Behavior constraints: allowable member stresses (including buckling) and maximum joint displacements. Methods of structural analysis and the optimizatio algorithm are thoroughly discussed. A flowchart displays the general system organization. ln addition, examples - some of them of structures already built - are included so that the system efficiency can be verified."]},{"key":"dc:title","label":"Title","values":["Otimização geométrica de treliças"]}]}],"canonical_facts":{"dc:contributor.advisor":["Segenreich, Solly Andy"],"dc:creator":["Moura, Vinicius Freire"],"dc:date.accessioned":["2017-09-22T18:48:10Z"],"dc:date.available":["2026-05-16T03:01:43Z"],"dc:date.issued":["1977-08"],"dc:description.abstract":["A computer system for automatic optimization of truss geometry is proposed, based upon Fletcher and Reeves algorithm. The system applies to space trusses, with multiple loading conditions and the following constraint types: - Geometric constraints: minimum and maximum values of joint coordinates, joint symmetry and variation of joint positions along fixed lines. - Behavior constraints: allowable member stresses (including buckling) and maximum joint displacements. Methods of structural analysis and the optimizatio algorithm are thoroughly discussed. A flowchart displays the general system organization. ln addition, examples - some of them of structures already built - are included so that the system efficiency can be verified."],"dc:identifier.uri":["http://hdl.handle.net/11422/2898"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Treliças","Otimização combinatória"],"dc:title":["Otimização geométrica de treliças"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:15:56Z"}