The Effect of The Damping Materials on Heavy-weight Floor Impact Noise in Box Frame-type Structures Building
Box Frame-type Structures Building floor with a damping layer can be modeled as a sandwich plate.For the efficient reduction of low frequency noise generated by heavy-weight floor impact, thickness of the damping layer needs to be optimized at the design stage. Therefore, modal loss
factors were calculated using the Ross-Kerwin-Ungar equation and the optimum thickness of the damping layer was determined at each mode so that several modes in the frequency range of interest can be considered.Furthermore, to investigate the frequency-dependent modal characteristics of complex
stiffness of the damping layer, an iteration method is proposed.
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Document Type: Research Article
Publication date: 21 August 2016
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