第二，声学材料隔声量测量系统的构建及测量。
Second, developing the sound transmission loss measuring system.
在需要测量具有高隔声量的小试件时，这个方法更加有用。
The method does provide a useful alternative where the measurements for the samples of small dimensions with high transmission loss are required.
并根据实验探讨了吸声末端的吸声性能对隔声量测试的影响。
The influence of the properties of the absorbent ending on the test results were discussed.
给出了机身侧壁壁板试件经过蜂窝刚度处理前后的隔声量试验结果。
Then, experimental data of noise transmission loss for both acoustics treated and untreated aircraft sidewall panels are given.
纤维细度变细，可在一定程度上提高材料吸声效果，但对材料的隔声量影响不明显。
To a certain extent, the finer fiber fineness, the better sound absorption, and doesn't effect obviously on the sound insulation.
文章建立了飞机壁板隔声的统计能量分析模型，研究了外部声场激励和振动激励通过飞机壁板的隔声量，预测了飞机舱室内的声场分布。
In this paper, a model of statistical energy analysis is used to study sound transmission loss of the aircraft cabin, and predict the sound field in the cabin.
文章建立了飞机壁板隔声的统计能量分析模型，研究了外部声场激励和振动激励通过飞机壁板的隔声量，预测了飞机舱室内的声场分布。
In this paper, a model of statistical energy analysis is used to study sound transmission loss of the aircraft cabin, and predict the sound field in the cabin.
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