| 管道消声器测试系统 |
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| 引用本文： | 王高沂,李可非,韩西明.管道消声器测试系统[J].环境工程,2012(Z1):204-207. |
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| 作者姓名： | 王高沂 李可非 韩西明 |
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| 作者单位： | 中国科学院声学研究所北海研究站 |
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| 摘 要： | 研制了完全符合ISO7135-2003和GB/T 25516-2010新标准的管道消声器测试系统。为噪声控制、气动声学、声隐身、环境声学研究工作提供科研支撑和保障条件。解决目前国内管道消声器测试系统不标准、测量不确定度偏大,测试结果难以比对的问题。该测试系统可满足较大气流(≤16.5m3/s)、较大尺度消声器的以下测试功能:——有气流和无气流状态下,管道消声器的频带插入损失;——消声器的气流再生噪声的频带声功率级;——有气流通过时,管道消声器的全压损失;——风道末端单元的频带传声损失。
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| 关 键 词： | 消声器 噪声控制、气动声学、再生噪声、插入损失 全压损失 |
PIPE MUFFLER TESTING SYSTEM |
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| Wang Gaoyi Li Kefei Han Ximing.PIPE MUFFLER TESTING SYSTEM[J].Environmental Engineering,2012(Z1):204-207. |
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| Authors: | Wang Gaoyi Li Kefei Han Ximing |
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| Institution: | Wang Gaoyi Li Kefei Han Ximing(Institute ofAcoustics,ChineseAcademy of Sciences North Sea Research Station qingdao 266023) |
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| Abstract: | This project has established a ducted silencer testing system that is in full comply with ISO7135-2003 and GB/T 25516-2010 new standard.It provides technical support and guarantee for Noise control,Aeroacoustics,Acoustic stealth,Environmental acoustic research.It aims at solving problems in ducted silencer test system research field,including nonstandard testing system,excessive measurement uncertainty,and incomparability of testing results.This testing system fulfills the following testing functions,under relatively large airflow(≤16.5m3/s) and with relatively large scale muffler.a) Band insertion losses of ducted silencer under both air flow and non-air flow;b) Band sound power level of silencer Air flow regeneration noise;c) Total pressure loss of ducted silencer under air flow;d) Band sound transmission losses of air-terminal units. |
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| Keywords: | silencer Noise control Aeroacoustics Regeneration noise Insertion loss Total pressure loss |
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