# Acoustic Insertion Loss of Balconies and Building Facades: trapped modes and computation methods

Research output: ThesisDoctoral Thesis

### Abstract

For noise intrusion problems, such as road traffic noise into apartment buildings, the ability to quantify the insertion loss of balconies and building facades is an important consideration. This thesis develops analytical models to calculate the insertion loss, which are compared to the direct solution of the wave equation using the boundary element method. In this manner, it is possible to mathematically explain phenomena such as negative insertion loss in the context of the trapped modes of the open cavity system, and frequency dependent values can be efficiently calculated for various geometric configurations and soffit treatments.
Original language English Doctor of Philosophy The University of Western Australia Australian Government Research Training Program 5 Apr 2019 https://doi.org/10.26182/5ce7797cf1ac6 Unpublished - 2019

### Fingerprint

insertion loss
acoustics
theses
boundary element method
intrusion
traffic
wave equations
cavities
configurations

### Cite this

@phdthesis{5d6551a3581945c488fd78d97c4ba2ec,
title = "Acoustic Insertion Loss of Balconies and Building Facades: trapped modes and computation methods",
abstract = "For noise intrusion problems, such as road traffic noise into apartment buildings, the ability to quantify the insertion loss of balconies and building facades is an important consideration. This thesis develops analytical models to calculate the insertion loss, which are compared to the direct solution of the wave equation using the boundary element method. In this manner, it is possible to mathematically explain phenomena such as negative insertion loss in the context of the trapped modes of the open cavity system, and frequency dependent values can be efficiently calculated for various geometric configurations and soffit treatments.",
keywords = "insertion loss, boundary element, balconies, finite difference, trapped modes, building facade, quasinormal modes, acoustic",
year = "2019",
doi = "10.26182/5ce7797cf1ac6",
language = "English",
school = "The University of Western Australia",

}

2019.

Research output: ThesisDoctoral Thesis

TY - THES

T1 - Acoustic Insertion Loss of Balconies and Building Facades: trapped modes and computation methods

PY - 2019

Y1 - 2019

N2 - For noise intrusion problems, such as road traffic noise into apartment buildings, the ability to quantify the insertion loss of balconies and building facades is an important consideration. This thesis develops analytical models to calculate the insertion loss, which are compared to the direct solution of the wave equation using the boundary element method. In this manner, it is possible to mathematically explain phenomena such as negative insertion loss in the context of the trapped modes of the open cavity system, and frequency dependent values can be efficiently calculated for various geometric configurations and soffit treatments.

AB - For noise intrusion problems, such as road traffic noise into apartment buildings, the ability to quantify the insertion loss of balconies and building facades is an important consideration. This thesis develops analytical models to calculate the insertion loss, which are compared to the direct solution of the wave equation using the boundary element method. In this manner, it is possible to mathematically explain phenomena such as negative insertion loss in the context of the trapped modes of the open cavity system, and frequency dependent values can be efficiently calculated for various geometric configurations and soffit treatments.

KW - insertion loss

KW - boundary element

KW - balconies

KW - finite difference

KW - trapped modes