基于平面波展开法和超声浸水透射技术,理论和实验研究了二维(32.4.3.4)格子钢/水声子晶体带隙性质.与正方晶格钢/水声子晶体相比,类正方(32.4.3.4)格子能够打开高频带隙,并进一步讨论了第一布里渊区Γ-X、Γ-M方向层厚和方向带隙稳定性关系,这为设计有限尺寸隔声材料提供依据.结果表明:带隙的频率范围和理论计算很好吻合.
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