吸送风式通风管道元件气流噪声的混响测试技术

The Measuring Technique in Flow Noise Studies Using the Reveberant Room with an Extracting and Delivering Duct System

近年来通风空调系统的气流噪声问题越来越受到人们的重视.本文提供了一种吸送风式通风管道元件气流噪声的混响测试方法及相应的实验数据整理公式.该方法具有测值范围宽、准确性好及易于控制流动参数等特点,可作为今后气流噪声研究中实际应用的方法之一.

There is an increasing interest today in the problem of the noise generated bythe fluid flow in ventilating and airconditioning systems.A kind of measuring meth-od of the flow noise generated by the ventilation duct elements as well as the rele-vant formulas for experimental data processing are presented in this paper.Themethod can be used in flow noise studies in future.It will help the experimental dataget a wider use,make it more accurate and easier to control the flow parameters.