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目前,一些强噪声车间通过窗户间周围环境辐射噪声,或闹市区通过窗户透入室内的噪声是十分严重的.为了改善噪声污染状况,设想在普通玻璃窗内侧附加一个充气半透明塑料薄膜袋式轻质隔声结构,以利于降低噪声的辐射,通过实测,初步证明:这种隔声结构在较宽频带内有一定的隔声性能;它不仅能有效地改善原玻璃窗的隔声效果,而且还具有安装简便、透光美观、价格低廉等优点,因而具有一定的实用价值.本文扼要地分析充气塑料薄膜结构的隔声原理,着重介绍实验结果和实际可能达到的隔声效果.
At present, it is very serious for some strong noise workshops to radiate noise through the surrounding environment of a window or into the indoor area through a window in a downtown area.In order to improve the noise pollution, it is envisaged to attach an inflatable translucent plastic film bag inside the ordinary glass window Lightweight sound insulation structure, in order to facilitate the reduction of noise radiation, through the measurement, preliminary proof: This sound insulation structure has a certain noise performance in a wider band; it can not only effectively improve the sound insulation effect of the original glass, But also has the advantages of simple installation, beautiful appearance and low price, so it has some practical value.This paper briefly analyzes the principle of sound insulation of inflatable plastic film structure, emphatically introduces the experimental results and the practical sound insulation effect.