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- W2589404848 abstract "Several systems of a vehicle are sources of vibrations, these are transmitted to the occupants of the structure. Viscoelastic materials (VEMs) have excellent damping capacity and low density so it can be used to combine low weight and high damping of structures and components. The present study is the identification of damping properties beams composed by elastic material (aluminum) covered by layers of viscoelastic materials. It was used the technique of impulse excitation through line Sonelastic solution, which characterizes a non destructive modulus of elasticity and the damping materials beams in free-free configuration, the technique of bandwidth of half power applied to a function of displacement transmissibility obtain by harmonic excitation beams, using electrodynamic driver, clamped-free configuration. We carried out experiments at room temperature, disregarding the effect of temperature. The results showed that the inclusion of VEMs provided to increase the damping, as expected, however, the beam that had greater amount of VEM did not show a greater rate of damping, but beams with intermediate amounts." @default.
- W2589404848 created "2017-03-03" @default.
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- W2589404848 date "2013-01-01" @default.
- W2589404848 modified "2023-10-07" @default.
- W2589404848 title "Universidade de Brasília - UnB Faculdade UnB Gama - FGA Curso de Engenharia Automotiva IDENTIFICAÇÃO EXPERIMENTAL DE AMORTECIMENTO DE VIGAS DE ALUMÍNIO COM CAMADAS DE MATERIAL VISCOELÁSTICO" @default.
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