Otimização estrutural de torres de aço para suporte de turbinas eólicas utilizando a interface MATLAB-ANSYS

• Autor(a) principal: Mendonça, Fernando Gonçalves
• Data de Publicação: 2017
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/11746
• topic: Mechanical Engineering; Wind power; Wind turbines; Wind Turbine; Optimization; Genetic Algorithm; MATLAB-ANSYS interface; Engenharia mecânica; Energia eólica; Turbinas a vento; Aerogerador; Otimização; Algoritmo genético; Interface MATLAB-ANSYS; CNPQ::ENGENHARIAS::ENGENHARIA MECANICA

Increasing energy consumption with the fast progressing natural environment degradation has been causing worldwide concern about renewable energy scientific research. In this context, wind energy is a good option and its use has been growing over the years. Wind turbines have been made larger, aiming for improvement in power generation. In accordance with the advance in size of turbines, tower optimization becomes more important, as towers account for 20 30% of turbine cost. This work aims to minimize the total volume of a REpower MM92 tower. In this paper a structural optimization technique is developed, using Genetic Algorithm (GA) by integrating ANSYS and MATLAB. During the process, the finite element analysis of ANSYS is responsible for the static and modal analysis, while MATLAB is responsible for the search algorithm. The volume of the tower is optimized under constraints of stress, displacement and natural frequency. The results obtained show a 30% reduction of the tower volume.