噪声与振动控制2017，Vol.37Issue(6)：120-125,6.DOI:10.3969/j.issn.1006-1355.2017.06.025
地铁所致某音乐排练厅室内二次结构噪声测试与仿真
Test and Simulation Analysis of Ground-borne Noise in a Rehearsal Hall Caused by Subway Operation
摘要
Abstract
With the rapid development of rail transportation, the ground-borne noise induced by passing-by trains in subways has been attracting serious public attentions. In this paper, the numerical simulation method for prediction of the ground-borne noise is studied with a rehearsal room beside two subway lines in Beijing as an example. First of all, a series of vibration tests on the structural floors and walls is conducted, and the sound pressure at the room center is measured. The characteristics of the vibration and the ground-borne noise caused by subway trains are summarized. Then, a tunnel-soil-structure coupled 3D finite element model of is established by means of Ansys to simulate the ground-borne noise. The results are compared with the test data. It shows that the numerical result agrees well with the test result below 100 Hz, and the peak of the ground-borne noise is found at 63 Hz in both results. Above 100 Hz, however, the simulation result is smaller than the test result due to the influence of the mesh size. Since frequency of the vibration caused by passing-by trains is usually in the range of 1-100 Hz, the simulation result is considered to be appropriate and sufficiently accurate. The proposed model provides a reference for similar cases in the prediction of the ground-borne noise induced by passing-by trains in subways.关键词
声学/地铁/二次结构噪声/现场实测/数值仿真Key words
acoustics/subway/ground-borne noise/in-situ test/numerical simulation分类
通用工业技术引用本文复制引用
邬玉斌,宋瑞祥,曾钦娥,吴丹,何蕾,户文成..地铁所致某音乐排练厅室内二次结构噪声测试与仿真[J].噪声与振动控制,2017,37(6):120-125,6.基金项目
2016年北京市财政资助项目(PXM2016_178304_000011) （PXM2016_178304_000011）
