Tsukamoto, Y.;
Sakagami, K.;
Okuzono, T.;
Tomikawa, Y.;
(2021)
Basic considerations on the
practical method for predicting
sound insulation performance
of a single-leaf window.
UCL Open: Environment
, 2
pp. 1-10.
10.14324/111.444/ucloe.000018.
Preview |
Text
ucloe-02-018.pdf Download (1MB) | Preview |
Abstract
As a basic study of a practical method for predicting the sound insulation performance of windows, this report presents a study of the sound reduction index of windows with single glazing, below a critical frequency. First, the results calculated by an existing theory for a single plate for the sound reduction indices are compared with measured results of actual windows to assess the theory’s applicability for evaluating the sound insulation performance of windows. Then, a regression analysis is employed to measure the results of a certain number of actual windows to explore a further development of a more practical prediction. The following findings were obtained: (1) Sound reduction indices of actual fixed windows are predictable using Sewell’s transmission theory for a single plate. However, sound reduction indices of openable windows, especially those of sliding windows, are strongly affected by gaps in the window frame. Therefore, predicting sound reduction indices of all windows accurately is difficult if using only one theory. (2) The frequency slope of the window reduction index is much lower than that of the mass law. Regression analyses indicate that the frequency slope of the reduction index of all examined windows is 3.0 dB per octave, on average.
| Type: | Article |
|---|---|
| Title: | Basic considerations on the practical method for predicting sound insulation performance of a single-leaf window |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.14324/111.444/ucloe.000018 |
| Publisher version: | https://dx.doi.org/10.14324/111.444/ucloe.000018 |
| Language: | English |
| Additional information: | © 2021 The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution Licence (CC BY) 4.0 https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited. |
| Keywords: | architectural acoustics, mass law, measurement, single glazing, sound insulation, window |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10129043 |
Archive Staff Only
 |
View Item |
