Encontrados 7 documentos, a visualizar página 1 de 1
Avaliação de turbinas eólicas utilizando simulações estocásticas Monte Carlo
Leandro Filho, Francisco de Assis; Silva Júnior, Francisco Ilson da; Duarte Junior, Orion LimaThe structural evaluation of wind turbines is an issue that depends on variables such as wind patterns, type and dimensions of the wind turbine as well as uncertainties related to these factors. To enter the uncertainties encountered in the evaluation of wind turbines, .it is necessary to establish probability distributions for the physical parameters of the medium. In this paper we propose a probabilistic stru...
Simulação numérica e otimização de camadas acústicas
Duarte Junior, Orion Lima; Silva Júnior, Francisco Ilson da; Leandro Filho, Francisco de AssisNeste trabalho são realizadas simulações visando obter uma melhor eficien poroelásticas. O objetivo deste trabalho é otimizar essas camadas juntamente com a retirada de material. Com a discretização e a solução do problema acústico pelo método de elementos finitos em lugares específicos de modo que se obtenha uma configuração específica com a melhor absorção para uma determinada frequência de vibração.
Coupling aerodynamic loading to structural analysis of wind turbines through nu...
Maia, Igor Albuquerque; Silva Júnior, Francisco Ilson da; Rocha, Paulo Alexandre Costa; Carneiro, Francisco Olimpio MouraStructural analysis of wind turbine blades is essential to design the other components of the turbine. In this context, the study of the loads imposed by the wind is necessary, since the choice of aerodynamic factors is determined by structural constraints. This work was carried out aiming to study the fluid-structure interaction in a micro-scale wind turbine through computational simulation, in order to obtain...
Some advance in the study of the deformation of the piston-cylinder unit of a p...
Soares Junior, Luiz; Silva Júnior, Francisco Ilson da; Lamary, Pierre Maurice ChristophePrevious works carried out by us were concerned by the development of axisymmetric Finite Elements (FE) in order to model metrological pressure balance. In this paper, a given pressure balance is studied. The very question is to verify if the analytical formulae, commonly used to deduce the pressure, are accurate. In particular, in the analytical approach, the piston-cylinder deformation is taking into account ...
Finite element analysis applied to dentoalveolar trauma: methodology description
Silva, Bruno Rocha da; Moreira Neto, José Jeová Siebra; Silva Júnior, Francisco Ilson da; Aguiar, Andréa Sílvia Walter deDentoalveolar traumatic injuries are among the clinical conditions most frequently treated in dental practice. However, few studies so far have addressed the biomechanical aspects of these events, probably as a result of difficulties in carrying out satisfactory experimental and clinical studies as well as the unavailability of truly scientific methodologies. The aim of this paper was to describe the use of fin...
Adapting the simp model for topology optimization of biomechanical structures
Álamo, Jonatan Rivilla; Silva Júnior, Francisco Ilson daThis paper presents a solid isotropic material penalization model (SIMP) based topology optimization research and its subsequent adaptation, which allows to obtain one similar method for ortotropic materials. Both methods have been used in the development of a regeneration model that finally has been applied to the research of the evolution of the bone, after an operation of artificial hip (prosthesis). This wa...
Evaluation of weveguide modal approximation applied to acoustic absorption anal...
Silva Júnior, Francisco Ilson da; Lamary, Pierre Maurice Christophe; Pavanello, RenatoIn order to analyze and design insulation systems, numerical methods, such as the finite element method and the boundary element method, are intensively used. In particular, for poroelastic materials models based on the Biot-Allard theory, mathematical relations in a mixed formulation were developed using the structural displacement u and the fluid pressure p as state variables. In this work, the simulation of ...