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Influência do comportamento dinâmico em juntas do tipo "k" em estruturas reticuladas planas
(2015-10-26)
This thesis presents the study of plane frame structures, also called trusses. The great demand of construction, and projects increasingly bold motivated this research. Three models lattices were performed in order to ...
Efeitos do corte por laser sobre a integridade superficial de um aço médio carbono
(2015-02-11)
A condition of the manufacturing process is the need to get processed parts, characterized by good quality surface finish, low roughness and the conservation of its metallurgical properties. These conditions have motivated ...
Análise estática e dinâmica de pórticos espaciais com incerteza no carregamento utilizando o método de elementos finitos
(2015-11-23)
In this thesis, static and dynamic analysis of elastic space frames with regime uncertainty in loading using the finite element method (FEM) are described. A structural approach to the dynamic problem of forced vibrations ...
Avaliação dos parâmetros que influenciam nas alterações dimensionais e nas tensões residuais do polipropileno moldado por injeção
(2018-10-17)
The final quality of the injection molded polymer products can be compromised due to the occurrence of residual stresses from the molding process, which can generate shrinkage and warpage, altering the final product ...
Análise estática de placas e cascas de revolução compostas por laminados sujeitas a carregamentos axissimétricos.
(2018-02-16)
With significant development of the aeronautical, naval and automotive industry from 1960, there was a need to reduce weight, along with the improvement of properties such as mechanical resistance, vibration control, ...
Estudo da influência do lubrificante sólido MoS2 nas propriedades de revestimentos protetores de TiN
(2014-06-03)
In this study we investigated the protective coating of titanium nitride using incorporation of molybdenum disulfide as a solid lubricant, seeking application in parts and cutting tools in the metal working industry. This ...
Avaliação da eficácia de suspensões regenerativas em veículos comerciais
(2021-06-10)
The growing increase in hybrid and electric vehicles on the market has stimulated the development of sources of energy generation and storage, by the vehicle subsystems, aiming at a better performance and autonomy of these ...
Aplicação de redes neurais no apoio à tomada de decisão para a aprovação de componentes estruturais mecânicos
(2022-06-11)
The Finite Element Method (FEM) is a virtual calculation resource used around the world to determine approximate numerical solutions to engineering problems. It is common for an analysis carried out by the MEF to be delayed ...
Método para a análise de vida em fadiga em chassi de implementos rodoviários a partir de densidades espectrais de potência
(2022-06-23)
This dissertation presents the development of a method for the fatigue life analysis in chassis
of road implements out of power spectral densities. For this, triaxial and uniaxial accelerometer
signals were used, which ...