研究了多层高分子复合结构斜入射声波作用下,各层材料动态力学性能参数和几何参数变化对其吸声性能的影响规律.应用三维传递矩阵数学模型计算了多层复合结构对垂直入射声波的吸声系数,并与实验结果进行了对比.结果表明计算结果与实验结果基本一致.利用此数学模型分析了各层材料厚度、模量、损耗因子及泊松比变化对吸声性能的影响.分析结果表明,各因素变化对吸声性能影响较大,且外层材料性能参数变化对吸声性能的影响明显大于内层材料性能参数变化对吸声性能的影响.
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