建筑室内噪声传播的仿真分析研究

Simulation Analysis of Sound Propagation inside Buildings

以某振动台室及其监控室为研究对象,通过声学仿真方法计算测试设备产生的噪声在室内空间的传播。为降低噪声向监控室的辐射,在振动台室铺设了吸声材料,并对室内声传播现象进行数值建模和仿真计算。计算结果显示吸声材料可以有效地减少噪声向监控室的传播,起到了较好的降噪效果。

A shake table room and its monitoring room were chosen to study the sound propagation inside the buildings induced by the noise of the equipment testing. Acoustic simulation was carried out to evaluate the sound propagation from the shake table room to the monitoring room. Absorption material was attached in the shake table room to reduce the noise level and noise diffusion to the monitoring room. Calculation results show that noise is obviously reduced after attaching the absorption material.