Prediction method for sound from passing vehicle transmitted through building façade

Authors: T. Asakura, T. Miyajima, S. Sakamoto

Abstract:
This study proposes a prediction method for assessing the sound of a passing vehicle that is transmitted through a glass plate, which employs the vibro-acoustic finite-difference time-domain (FDTD) method. The noise that is transmitted through the glass in a building façade, which is affected by the soundinsulation characteristics of its glass plates, can have a psychological influence such as a sleep disorder on the residents. In this study, a prediction method for the spectral characteristics of the transmitting sound through glass plates is proposed. The sound-insulation characteristics of glass plates are obtained using a vibro-acoustic FDTD method, and are then synthesized with the sound of passing vehicles obtained by in situ measurement. Firstly, the sound transmitted through several kinds of glass plates is simulated using the proposed method. Then, in order to confirm the validity of this method, the simulated results are compared to measured sounds transmitted by passing vehicles into a room near the street.

Keywords:
Auralization
Finite-difference time-domain method
Vibro-acoustic numerical analysis

Published in: Applied Acoustics (Volume 74, Issue 5, May 2013)

Publisher: Elsevier

ISSN Information: 0003-682X

Prediction method for sound from passing vehicle transmitted through building façade

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