2014
DOI: 10.3390/s140304960 View full text |Buy / Rent full text
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Abstract: This work presents a hybrid (experimental-computational) application for improving the vibration behavior of structural components using a lightweight multilayer composite. The vibration behavior of a flat steel plate has been improved by the gluing of a lightweight composite formed by a core of polyurethane foam and two paper mats placed on its faces. This composite enables the natural frequencies to be increased and the modal density of the plate to be reduced, moving about the natural frequencies of the pla… Show more

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“…Nonlinear stiffness and viscoelastic parameters of flexible polyurethane foams could be obtained by a vibration test and compression test [19,20]. However, beyond that, polyurethane foam also was often used as core material to make sandwich board [22,23] and honeycomb board structures [24], because of its good vibration absorption and isolation performance. To understand the vibration characteristics of foam materials, the researchers studied the density, strength, and viscoelasticity of foam materials [25,26].…”
Section: Introductionmentioning
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“…Nonlinear stiffness and viscoelastic parameters of flexible polyurethane foams could be obtained by a vibration test and compression test [19,20]. However, beyond that, polyurethane foam also was often used as core material to make sandwich board [22,23] and honeycomb board structures [24], because of its good vibration absorption and isolation performance. To understand the vibration characteristics of foam materials, the researchers studied the density, strength, and viscoelasticity of foam materials [25,26].…”
Section: Introductionmentioning