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研究空气薄膜阻尼结构的隔声问题,采用统计能量分析方法估算薄膜阻尼结构的隔声量,在高频范围内理论预估值与实验值吻合较好,为其隔声设计提供了理论方法;通过实验研究了薄膜阻尼结构的有关参数变化对隔声量的影响关系,得出了一些对工程应用有指导意义的结果。
The research on the sound insulation problem of the damping structure of the air membrane and the statistical energy analysis method are used to estimate the sound insulation capacity of the damping structure. The theoretical predictions agree well with the experimental values in the high frequency range, which provides a theoretical method for the sound insulation design. The influence of the change of the parameters of the membrane damping structure on the sound insulation quantity is experimentally studied, and some results that are of guiding significance to engineering application are obtained.