高速铁路隧道壁吸声材料降噪效果仿真分析.pdf

第58卷第9期
铁道标准设计
Vol 58 No 9
2014年9月
RAILWAY STANDARD DESIGN
Sep.2014
文章编号:1004-2954(2014)09-0110-04
高速铁路隧道壁吸声材料降噪效果仿真分析
于越',常亮',尹镪
(1.铁道第三勘察设计院集团有限公司,天津300251;
2.西南交通大学牵引动力国家重点实验室,成都610031)
摘要:应用 SYSNOISE软件建立列车-隧道一隧道内壁吸音板结构的二维边界元模型,研究隧道内壁吸声結构不
同铺设方案下的降噪效果。根据高速铁路列车通过时隧道内壁吸声结构不同铺设面积、铺设位置等因亲,分析其
对列车通过时噪声的降噪效果,并综合考虑工程经济性等因素,计算4个较为典型的隧道内壁吸声结枘的铺设方
案。计算结果表明:在隧道内壁全部铺设吸声材料的情况下,铺设隧道吸声结构对隧道内声压级的降噪效果约为
14.3dB。随着隧道内壁吸声材料铺设面积的增加,道内的降噪效果越好。在计算选取的4个方案中,内壁整体
铺设方彙降噪效果最佳,内壁部分铺设方彙降噪效果最差,两者的组合方策降噪效果适中,实际工程应用中应综合
各方面因素对降噪方氣进行选取。
关键词:高速铁路;賤道降噪;吸声结构;边界元法;仿真分析
中图分类号:U238;X827文献标识码:ADOl:10.13238/.isan.1004-2954.2014.09.027
Simulation Analysis of Noise Reduction Effect of Sound-absorbing
Material on Hfigh-speed Rail Tunnel Surface
YU Yue, CHANG Liang, YIN Qiang
1. The Third Railway Survey and Design Institute Group Corporation Tianjin 300251, China; 2. State Key Laboratory of
Traction Power, Train and Track Research Institute, Southwest Jiaotong University, Chengdu 610031, China)
Abstract A two-dimensional boundary element model for train, tunnel and sound-absorbing board
structure on the tunnel surface is established with the software SYSNOIE to evaluate different design
proposals' noise reduction effects in tunnel. In this research, noise reduction effects are calculated while
a high-speed train is running through the tunnel with sound-absorbing material on the surface, and several
th as material
location are taken into account. Four typical materia
installation proposals are designed and calculated. The results show that the installation of sound
absorbing material may reduce about 14.3 db if only the entire tunnel surface is covered with sound
absorbing material. The more the tunnel surface is covered with sound absorbing material, the better the
noise reduction effect. Of the four typical installation proposals, the one with full coverage is the best in
noise reduction, while the one with partial coverage the worst. The combination of the two shows the
intermediate result. Design proposals shall be carefully selected for practical application with various
factors considered
Key words: High-speed railway; Noise reduction in tunnel; Sound-absorbing structure; Boundary
element method; Simulation analysis
铁路高速化是当今世界各国铁路现代化发展的必剧,其中高速列车运营产生的噪声污染尤为突出,列车
然趋势。列车速度的提高,其产生的环境影响明显加通过隧道时车内外声环境更加恶化。在津秦客运专线
联调试验及石太、武广客运专线等线路运营过程中,当
收稿日期:2014-07-01
基金项目:铁道部科技硏究开发计划(721006)
高速动车组通过媵道区段时,车厢内声级水平明显增
作者简介:于越(1966~-),男,高级工程虾,1988年毕业于兰州交通
高引起乘客舒适度降低
11-2
大学环境工程专业,工学学士,E-mail: yuyue(@ tsdig,como