Seeing that the noise radiates through the inlet of air and iron box, a silencer for the inlet and a rectangular enclosure are designed. 针对加热器回风口和方箱是噪声向外辐射的必经途径,本文主要从消声器消声设计、方箱隔声设计两个方面出发,探讨了不改变加热器结构的降低噪声方法。
At the same time, we analyses the effect of the air speed on the property of silencer on real condition and modify the wave equation and the boundary condition. 同时,根据实际情况分析了气流对消声器特性的影响,对波动方程及其边界条件进行了修正。