Abstract
The study is devoted to the calculation of the vibration transmission via a nonideal junction; the example considered is an L-beam system including two steel beams and an elastic block between them. A combination of two calculation methods is used. A finite element method (package ABAQUS) is used to determine the stiffness characteristics of the elastic block having a rectangular parallelpiped shape. These stiffness characteristics are substituted into the calculation for the vibrational behavior of the L-beam system. For such a calculation, the transfer matrix method (TMM) is applied. The experimental approach of the study is divided into two different parts. First the tension-compression and the shear stiffnesses of the elastic block are measured, and, second, the transfer mobility through the complete L-beam system with the rubber elastic block between the two beams is measured. For the two cases, calculated and measured results are compared.
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