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Now showing items 11-20 of 26
Estudo numérico do controle passivo de vibrações em torneamento mecânico a partir de materiais piezoelétricos
(Universidade Federal de São Carlos, 2021-01-15)
Chatter is a self-excited vibration that is found in several machining processes and for this reason it is one of the main causes for bad superficial quality on the workpiece. Therefore, the need of minimizing vibrations ...
Monitoramento da integridade estrutural a partir de sensoreamento de baixo-custo: Investigação de técnicas de inteligência artificial para classificação de danos estruturais
(Universidade Federal de São Carlos, 2023-11-16)
In engineering, a structure is designed considering its possible failure due to damage that occurs over time. In this context, in order to extend the useful life of components, avoid failures and operational problems, ...
Comparação entre os métodos de análise modal operacional e análise modal experimental a partir de um ensaio de vibração em uma estrutura frame
(Universidade Federal de São Carlos, 2023-07-05)
Vibration sensors, such as accelerometers, are applied in various techniques for monitoring the structural health of structures, such as bridges, machines, among others. In modal analysis, there have been several studies ...
Classificação de descontinuidades em vias asfaltadas usando redes neurais treinadas a partir de modelos físicos da dinâmica vertical de veículos
(Universidade Federal de São Carlos, 2023-09-06)
With the growth of cities, there has been a noticeable increase in the amount of time people spend within transportation means on paved roads. Consequently, various ergonomic-related issues arise. In this context, this ...
Monitoramento da integridade estrutural a partir de sensoriamento de baixo-custo: projeto e desenvolvimento de bancada experimental integrada a plataforma de computação em nuvem
(Universidade Federal de São Carlos, 2023-03-17)
Structural Health Monitoring (SHM) has been a widely used tool, as it offers greater longevity to structures. Technologies using vibration as a parameter for this monitoring are proving to be efficient and several research ...
Desenvolvimento de ferramenta computacional baseada em Multiple Instance Learning para análise de vibrações mecânicas através de uma câmera digital
(Universidade Federal de São Carlos, 2022-04-29)
In the engineering field, there is a need for monitoring and evaluating equipment that is in constant operation. A type of mechanism can cause problems in some components, so it can also cause a failure in the ...
Monitoramento da integridade estrutural a partir de sensoriamento de baixo-custo: investigação de índices de dano e de efeitos de variáveis ambientais
(Universidade Federal de São Carlos, 2022-03-24)
Structures are constantly subjected to external inputs, such as the application of forces, wind actions, temperature variations, among others, which can generate wear, noise and failures. Hence, techniques for monitoring ...
Análise dinâmica e dimensionamento de um sistema pendular com roda de reação
(Universidade Federal de São Carlos, 2022-09-28)
Whether in robotics or even in space vehicles, reaction wheels, characterized by a rotating disk coupled to an inertia flywheel, act as actuators that confers a non-linear and under-acting behavior to the response. This ...
Estudo numérico do uso de amortecedor magneto-reológico na redução de vibrações auto-excitadas durante torneamento
(Universidade Federal de São Carlos, 2022-09-27)
Chatter are self-excited vibrations that may occur during machining operations. Despite being known for more than a century, chatter is still a major limiting factor on machining operations, decreasing productivity, tool ...
Estudo dinâmico de fluidos magneto-reológicos de baixo custo
(Universidade Federal de São Carlos, 2019-12-16)
Magnetorheological (MR) fluids are materials composed of magnetizable particles suspended in a non-magnetizable “carrier” fluid. These materials have the ability to change their rheological properties in the presence of a ...