高速列车轮轨噪声控制的新型声屏障设计方法研究

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摘要我国轨道交通的基础建设已得到了快速的发展。随着新版《中华人民共和国噪声污染防治法》的实施，轨道交通对于沿线声环境的污染防治也将成为后期重点关注的问题之一因此有必要提高轨道交通重要降噪设备声屏障在隔声性能方面的要求。本文针对轨道交通轮轨噪声的频段范围，基于Bragg带隙机理提出了三种针对轨道交通轮轨噪声的新型的二维气-固声子晶体型能带结构设计方案，分析了三种设计方案对应的带隙特性，并通过声传递损失评价了三种设计方案的隔声效果。研究表明，本文结合声子晶体理论设计的能带结构排布方式，能够对特定频段内的轮轨噪声形成高效的阻隔；通过合理设计散射体的布置形式和几何参数，可进一步实现特定多频段的有效隔声；因此将本文提出的方案应用于声屏障设计，能够有针对性地提升声屏障的隔声性能。

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	张小安1
	宋杲1
	曹兴潇1
	朱胜阳2
	杨建近2
	张晓芸1

关键词 ：轨道交通, 声屏障, 声子晶体, 隔声性能, 带隙特性

Abstract：China's rail transit infrastructure has been rapid development. With the implementation of the new version of the "Law of the People's Republic of China on Prevention and Control of Noise Pollution, the pollution prevention and control of the acoustic environment along the rail transit will become one of the key issues in the later stage. Therefore, it is necessary to improve the sound insulation performance requirements of the sound barrier of the important noise reduction equipment of rail transit.This paper proposes three new two-dimensional gas-solid phonon crystal type energy band structure design schemes for rail transit wheel track noise based on the Bragg band gap mechanism, analyzes the band gap characteristics of the three design schemes, and describes the sound insulation effect of the three design schemes through the sound transmission loss.The results show that the band structure arrangement designed in this paper based on phononic crystal theory can effectively block wheel-rail noise in a specific frequency band. By designing the arrangement and geometric parameters of scatterers reasonably, effective sound insulation can be further achieved in specific multi-frequency bands. Therefore, applying the proposed scheme to the sound barrier design can effectively improve the sound insulation performance of the sound barrier.

Key words： Rail transit Sound barrier Phononic crystal Sound insulation performance Band gap characteristics

收稿日期: 2022-07-13 出版日期: 2023-12-15

引用本文:

张小安1,宋杲1，曹兴潇1，朱胜阳2，杨建近2，张晓芸1. 高速列车轮轨噪声控制的新型声屏障设计方法研究[J]. 振动与冲击, 2023, 42(23): 231-239.
ZHANG Xiao’an1,SONG Gao1,CAO Xingxiao1,ZHU Shengyang2,YANG Jianjin2,ZHANG Xiaoyun1. Design method of new type sound barrier for wheel-rail noise control of high-speed train. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(23): 231-239.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I23/231

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