苏州地铁风亭噪声特性及其衰减仿真分析

Simulation Analysis of Wind Pavilion Noise Characteristic and the Attenuation in Suzhou Metro

通过对苏州地铁风亭进行噪声测试与分析,确定了各类风亭的噪声源,并分析了其噪声特性。应用环境噪声评价软件CadnaA仿真分析了苏州地铁1号线东环路站活塞风亭、2号线宝带西路站排风亭和劳动路站新风亭周围的声场分布,并与噪声标准作了对比,分析了各风亭噪声的达标状况,为风亭的噪声控制提供参考。

Through measurement and analysis of wind pavil- ion noise in Suzhou metro, the noise sources of different wind pavilions are identified, their characteristics are ana- lyzed. The sound field distribution around the piston wind pavilion at Donghuan Road Stationof Line 1, the exhaust wind pavilion at Baodai Road Station and the fresh air pa- vilion at Laodong Road Station of Line 2 are simulated by using software CadnaA. The result is compared with noise standards to judge whether the noise of different wind pa- vilions is up to the standards, so as to provide a reference for wind pavilion noise control.