A study of sound transmission loss for building materials using simulative and experimental approaches
Aksoylu, Ceyhun and Mendi, Engin and Soylev, Arda
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Abstract
The sound insulation models that we use in this study are based on
theoretical computations and their aim is to reduce time, labor and cost
consumption during the calculation of ``Sound Transmission Loss (R){''}
of a particular material experimentally. In this study, for 11 different
materials, we compare the performance of various simulation models with
the experimental results that are already available in the literature.
The experiments were carried out with Bastian, Akuzoft, Insul and
dBKAissla model. The analyses were conducted in the standards of ISO
12354, ISO 10140 and ISO 717 in 1/3 octave band. In the models, basic
formulas from the literature, computation methods that is necessary to
be used in R value calculation for single panels, dimensions of the
panels, thickness, density, elasticity module, porosity, internal loss
factor belonging to the material and velocity of sound in air have been
taken into consideration. In summary, we conducted the simulations with
different sound insulation models for the materials whose R values
correspond to particular frequencies that have been calculated using
experimental work. Comparing the results, effectiveness of each model
has been calculated in terms of R and `` Weighted Sound Reduction Index
(R-w){''}.... Show more Show less