【摘要】 聚氨酯作为一种优异的材料近年来被广泛应用，利用夹层板这种特殊的结构形式，基于传统船用加筋板，通过等质量原理，设计了不同开孔形式的船用聚氨酯蜂窝板，利用声学边界元的方法对其隔声性能进行有限元仿真研究。同时分析面板厚度、夹层高度和夹芯壁厚等因素对聚氨酯蜂窝板隔声性能的影响规律，结果表明六边形孔的蜂窝板隔声性能略差，其他开孔形式对蜂窝板隔声性能的影响很小，增加面板厚度、夹层高度和夹芯壁厚在一定程度上可以提高隔声性能。通过与传统船用加筋板进行隔声性能对比，得到聚氨酯蜂窝板的隔声性能比加筋板优越的特性。更多还原

【Abstract】 Polyurethane as an excellent material has been widely used in recent years. Based on the traditional marine stiffened panel and the principle of equal mass, different kinds of polyurethane honeycomb panels with different openings are designed in this paper. At the same time, the influence of panel thickness, sandwich height and sandwich wall thickness on the sound insulation performance of polyurethane honeycomb panel is analyzed. The results show that the sound insulation performance of honeycomb panel with hexagonal holes is slightly poor, and the effect of other openings on the sound insulation performance of honeycomb panel is very small. Increasing the thickness of panel, sandwich height and sandwich wall thickness can improve the sound insulation performance to a certain extent. Compared with the traditional marine stiffened panel, the sound insulation performance of polyurethane honeycomb panel is superior to that of stiffened panel.更多还原