Uso De Malhas Triangulares Em Métodos De Programação Linear Sequencial Aplicados À Otimização Topológica

• Ano de defesa: 2018
• Autor(a) principal: Aguiar, Marila Torres De [UNIFESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de São Paulo (UNIFESP)
• Palavras-chave em Português: Topological Optimization; Aerospace Sector; Triangular Network; Otimização Topológica; Setor Aeroespacial; Malhas Triangulares
• Link de acesso: https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=6384169; https://repositorio.unifesp.br/handle/11600/52308

Problems of Topological Optimization aim to obtain an ideal configuration of a structure, taking into consideration aspects such as stiffness, displacements, intensity and position of force applications and material availability. Usually, these problems are formulated as large nonlinear optimization problems. In this work, we present research possibilities related to the efficiency of the methods of the Sequential Linear Programming types and in Topological Optimization problems with irregular domain. The main contribution is the adaptation of the proposed code in (SENNE, 2009) to deal with regular and irregular triangular finite elements. For this adaptation, the whole theoretical part of the problem modeling is redone and numerical tests are performed to validate the developed algorithm and analyze its efficiency. In addition, a bibliographical review on the use of Topological Optimization in the aerospace sector is presented and the resolution of a problem related to the optimal filling of an aircraft wing is presented.