Nas últimas décadas verificou-se um aumento significativo no número de animais domésticos abandonados, principalmente cães. Dessa forma, as organizações não governamentais possuem um papel fundamental na proteção dos animais nessa situação. Para isso, além de trabalho voluntário, é necessário que as instituições possuam espaços adequados para acolher esses animais. Assim, foi desenvolvido o presente projeto de extensão com o intuito de construir uma nova baia para os cães no Abrigo Independente Paraíso de Cães da cidade de Catalão-GO. O desenvolvimento do projeto contou com as etapas de planejamento, levantamento de dados e arrecadação de materiais para enfim efetivar a execução da obra. Assim, obteve-se resultados satisfatórios, tanto para o Abrigo, quanto para os participantes do projeto, que puderam aplicar os conhecimentos adquiridos no decorrer do curso de graduação em Engenharia Civil, bem como exercitar a cidadania. Ademais, pelo projeto, foi possível estreitar os laços entre a Universidade e a comunidade catalana, desempenhando um papel importante na melhoria de vida dos animais abandonados da cidade.
The great use of circular cylindrical shells for conveying fluid in modern industrial applications has made of them an important research area in applied mechanics. Many researchers have studied this problem, however just a reduced number of these works have as object the analysis of orthotropic shells. Although most investigations deal with the analysis of elastic isotropic shells in contact with internal and external quiescent or flowing fluid, several modern and natural materials display orthotropic properties and also stiffened cylindrical shells can be treated as equivalent uniform orthotropic shells. In this work, the influence of internal flowing fluid on the dynamic instability and non-linear vibrations of a simply supported orthotropic circular cylindrical shell subjected to axial and lateral time-dependent loads is studied. To model the shell, the Donnell’s non-linear shallow shell theory without considering the effect of shear deformations is used. A model with eight degrees of freedom is used to describe the lateral displacements of the shell. The fluid is assumed to be incompressible and non-viscous and the flow to be isentropic and irrotational. The Galerkin method is applied to derive the set of coupled non-linear ordinary differential equations of motion which are, in turn, solved by the Runge-Kutta method. The obtained results show that the presence of the internal fluid and material properties have a great influence on the vibration characteristics of the shell.
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