Multi-Layer Micro-Perforated Panels with Broadband Absorption for Reduction of High-Speed Railway Noise

被引：0

作者：

Sheng, Feng ^{[1
,2
]}

Jiang, Zaixiu ^{[3
,4
]}

He, Yinzhi ^{[4
,5
]}

Zeng, Xiaoqing ^{[6
]}

Deng, Bo ^{[6
]}

An, Xuehui ^{[1
]}

Yu, Wuzhou ^{[3
,4
]}

机构：

[1] School of Civil Engineering, Tsinghua University, Beijing

[2] Powerchina Roadbridge Group Co.， Ltd., Beijing

[3] School of Physics Science and Engineering, Tongji University, Shanghai

[4] Shanghai Key Laboratory of Vehicle Aerodynamics and Vehicle Thermal Management Systems, Tongji University, Shanghai

[5] School of Automotive Studies, Tongji University, Shanghai

[6] Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai

来源：

Tongji Daxue Xuebao/Journal of Tongji University | 2024年 / 52卷 / 09期

关键词：

high-speed railway; micro-perforated panel; noise; sound barrier;

D O I：

10.11908/j.issn.0253-374x.23359

中图分类号：

学科分类号：

摘要：

Based on the transfer matrix method，the calculation of absorption of multi-layer micro-perforated panels （MPP） is conducted. Properly increasing the number of layers with different impedance in given cavity depths can improve sound absorption performance. The 4-layer and 5-layer micro-perforated panels with optimized parameters obtained by genetic algorithm can significantly broaden the sound absorption frequency bandwidth and improve the absorption coefficient of the whole frequency range， with an average absorption of 0.7 and 0.8 respectively in the range of 200–3 150 Hz which covers the main noise frequency range of high-speed train at 250 – 350 km•h-1 . For 5-layer absorbers，absorption coefficients can be higher than 0.8 at 400–4 000 Hz. © 2024 Science Press. All rights reserved.

引用

页码：1469 / 1473

页数：4

共 17 条

[1]

ZHANG Shuguang, Noise mechanism， sound source localization and noise control of 350km·h<sup>-1</sup> high-speed train［J］, China Rail Way Science, 30, 1, (2008)

[2]

Japanese railway technology today ［M］, (2001)

[3]

THOMPSON D J, Identification modeling and reduction potential of railway noise sources：a critical survey［J］, Journal of Sound and Vibration, 267, 2, (2003)

[4]

THOMPSON D J，, LATORRE IGLESIAS E，, LIU X，, Et al., Recent developments in the prediction and control of aerodynamic noise from high-speed trains［J］, International Journal of Rail Transportation, 3, 3, (2015)

[5]

VINCENT N., Rolling noise control at source：state-of-the-art survey［J］, Journal of Sound and Vibration, 231, 3, (2000)

[6]

SUN Zhenxu, YAO Yongfang, YANG Yan, Et al., Overview of the research progress on aerodynamic noise of high-speed trains in China［J］, Acta Aerodynamic Sinica, 36, 3, (2018)

[7]

WU Xiangyang, GU Xiaoan, LIU Lanhua, Et al., Study on emission standards of high-speed railway environmental noise ［J］, Railway Energy Saving & Environmental Protection & Occupational Safety and Health, 9, 2, (2019)

[8]

ZHANG X, Et al., Acoustic performance of a semi-closed noise barrier installed on a high-speed railway bridge：measurement and analysis considering actual service conditions［J］, Measurement, 138, (2019)

[9]

WU Xiangyang, ZHANG Geming, DONG Xiaoqing, Et al., Progress and prospect of noise control technology for high speed railway［J］, China Railway, 6, (2021)

[10]

ZHOU Xin, XIAO Xinbiao, HE Bin, Et al., Influential factors and rules for insertion loss of high-speed railway noise barriers［J］, Journal of Southwest Jiaotong University, 49, 6, (2014)

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