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The improvement on noise attenuation performance of a duct-resonator system

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WOS被引频次:2
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成果类型:
期刊论文
作者:
Wu, Dizi*;Zhang, Nan
通讯作者:
Wu, Dizi
作者机构:
[Wu, Dizi] Cent S Univ, Sch Civil Engn, Railway Campus,22 Shao Shan Nan Rd, Changsha, Hunan, Peoples R China.
[Zhang, Nan] Cent S Univ, Sch Architecture & Art, Changsha, Hunan, Peoples R China.
通讯机构:
[Wu, Dizi] Cent S Univ, Sch Civil Engn, Railway Campus,22 Shao Shan Nan Rd, Changsha, Hunan, Peoples R China.
语种:
英文
关键词:
noise control;resonator;transfer matrix;periodic
期刊:
Journal of Asian Architecture and Building Engineering
ISSN:
1346-7581
年:
2017
卷:
16
期:
3
页码:
669-674
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:工程学;WOS学科类别:Architecture;Construction & Building Technology
入藏号:
WOS:000411831300030;EI:20173904198507
机构署名:
本校为第一且通讯机构
院系归属:
土木工程学院
建筑与艺术学院
摘要:
The Helmholtz resonator (hereafter resonator) is qualified as a silencer with a narrow noise attenuation band at its designed resonance frequency. Combining several resonators in line is a possible way to produce a broader noise attenuation band. This paper focuses on improving the noise attenuation performance of a duct-resonator system at low frequency. Two types of periodic duct-resonator system are analyzed theoretically and numerically: a duct-resonator system with identical resonators and a modified duct-resonator system with periodic two-resonator arrays. The planar wave theory and the transfer matrix method are used to investigate wave propagation in the duct-resonator system. The theoretical prediction results yield satisfactory agreement with the Finite Element Method simulation results. The results indicate that both the periodic duct-resonator system and the modified duct-resonator system can broaden the noise attenuation band. Furthermore, the proposed modified duct-resonator system in this paper contributes to a relatively broader noise attenuation band than the periodic duct-resonator system. The modified duct-resonator system provides a useful method for the design of such a system, in order to obtain a relatively broadband noise attenuation. ©2017, Architectural Institute of Japan. All rights reserved.
参考文献:
Alimohammadi I, 2013, ENVIRON MONIT ASSESS, V185, P7043, DOI 10.1007/s10661-013-3084-8
BRADLEY CE, 1994, J ACOUST SOC AM, V96, P1844, DOI 10.1121/1.410196
Cai CZ, 2016, J ACOUST SOC AM, V140, pEL471, DOI 10.1121/1.4968530
Cai CZ, 2017, APPL ACOUST, V115, P74, DOI 10.1016/j.apacoust.2016.08.020
Colin H.H, 2007, EFFECTS LOW FREQUENC

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