高声学歌剧院空调系统降噪技术研究与实施

Research and Implementation of Noise Reduction Technology for Air Conditioning System of High Acoustic Opera House

以上海音乐学院歌剧院工程为研究背景,通过对风管隔声毡的施工工艺进行对比分析、工艺优化,然后采用数字化仿真模型(CFD)预测,以此来通过调整相关的参数改善气流组织、风场分布、消除气流局部涡流。同时,研究了对消声部件或配件进行合理选型的方式、方法,最终确保歌剧院满足整体NR20,部分NR17的声学设计要求。通过此方法,噪声可降低到合理的范围内,可为类似工程提供切实有用的实施参考和理论借鉴。

Taking the opera house project of Shanghai Conservatory of Music as the research background,the construction technology of air duct sound insulation felt is compared,analyzed and optimized,and the digital simulation model(CFD)is predicted to adjust relevant parameters,improve air distribution and wind field distribution,and eliminate local eddy current of air flow.At the same time,the selection method of silencing parts or accessories is studied.Finally,it is ensured that the Opera House meets the acoustic design requirements of overall NR20 and part of requirements of NR17.Through the implementation of technical measures,the noise can be reduced to a reasonable range,which can provide reference for similar projects.