Role of quasinormal modes in controlling the sound transmission loss of duct mufflers

Jie Pan; James Leader; Yuhui Tong

doi:10.1109/ICNF.2015.7288634

Role of quasinormal modes in controlling the sound transmission loss of duct mufflers

Jie Pan, James Leader, Yuhui Tong

Research output: Chapter in Book/Conference paper › Conference paper › peer-review

6 Citations (Scopus)

Abstract

© 2015 IEEE. In this work, the sound transmission of plane waves in a duct through an expansion chamber is used to illustrate the role of the quasinormal modes of the chamber in controlling transmission loss. The complex natural frequencies and mode shapes of the quasinormal modes are presented, demonstrating the loss, orthogonality, and frequency-dependent properties of the modes. We demonstrate that the expansion of the sound pressure in the chamber by the quasinormal modes is complete and that the interaction between the quasinormal modes and incident sound can be used to characterise the features of the transmission loss.

Original language	English
Title of host publication	2015 International Conference on Noise and Fluctuations, ICNF 2015
Place of Publication	China
Publisher	Wiley-IEEE Press
Pages	1-4
ISBN (Print)	9781467383356
DOIs	https://doi.org/10.1109/ICNF.2015.7288634
Publication status	Published - 2015
Event	23rd International Conference on Noise and Fluctuations - Xian, China Duration: 2 Jun 2015 → 5 Jun 2015

Conference

Conference	23rd International Conference on Noise and Fluctuations
Country/Territory	China
City	Xian
Period	2/06/15 → 5/06/15

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10.1109/ICNF.2015.7288634

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title = "Role of quasinormal modes in controlling the sound transmission loss of duct mufflers",

abstract = "{\textcopyright} 2015 IEEE. In this work, the sound transmission of plane waves in a duct through an expansion chamber is used to illustrate the role of the quasinormal modes of the chamber in controlling transmission loss. The complex natural frequencies and mode shapes of the quasinormal modes are presented, demonstrating the loss, orthogonality, and frequency-dependent properties of the modes. We demonstrate that the expansion of the sound pressure in the chamber by the quasinormal modes is complete and that the interaction between the quasinormal modes and incident sound can be used to characterise the features of the transmission loss.",

author = "Jie Pan and James Leader and Yuhui Tong",

year = "2015",

doi = "10.1109/ICNF.2015.7288634",

language = "English",

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pages = "1--4",

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AU - Pan, Jie

AU - Leader, James

AU - Tong, Yuhui

PY - 2015

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N2 - © 2015 IEEE. In this work, the sound transmission of plane waves in a duct through an expansion chamber is used to illustrate the role of the quasinormal modes of the chamber in controlling transmission loss. The complex natural frequencies and mode shapes of the quasinormal modes are presented, demonstrating the loss, orthogonality, and frequency-dependent properties of the modes. We demonstrate that the expansion of the sound pressure in the chamber by the quasinormal modes is complete and that the interaction between the quasinormal modes and incident sound can be used to characterise the features of the transmission loss.

AB - © 2015 IEEE. In this work, the sound transmission of plane waves in a duct through an expansion chamber is used to illustrate the role of the quasinormal modes of the chamber in controlling transmission loss. The complex natural frequencies and mode shapes of the quasinormal modes are presented, demonstrating the loss, orthogonality, and frequency-dependent properties of the modes. We demonstrate that the expansion of the sound pressure in the chamber by the quasinormal modes is complete and that the interaction between the quasinormal modes and incident sound can be used to characterise the features of the transmission loss.

U2 - 10.1109/ICNF.2015.7288634

DO - 10.1109/ICNF.2015.7288634

M3 - Conference paper

SN - 9781467383356

SP - 1

EP - 4

BT - 2015 International Conference on Noise and Fluctuations, ICNF 2015

PB - Wiley-IEEE Press

CY - China

T2 - 23rd International Conference on Noise and Fluctuations

Y2 - 2 June 2015 through 5 June 2015

ER -

Role of quasinormal modes in controlling the sound transmission loss of duct mufflers

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