【作者】 罗马奇； 赵洪； 陈瑶； 吴友亮； 张权；

【Author】 LUO Maqi;ZHAO Hong;CHEN Yao;WU Youliang;ZHANG Quan;Hangzhou Applied Acoustics Research Institute;

【机构】 杭州应用声学研究所；

【摘要】 提出一种耐压声学滤波器的设计方法,该方法利用双层板隔声原理,采用双层金属板,通过调整板厚和间距来控制高、低频的隔声量。制作了样品进行水池测试,测试结果与理论值吻合较好,并满足截断参量阵的使用要求。该结构中间与周围水介质相通,具有声学性能不随压力变化的特点。更多还原

【Abstract】 A method of designing a pressure-resistant acoustic filter is proposed. This method uses the principle of double-layer board sound insulation, adopts a double-layer metal board, and adjusts the thickness and spacing of the boards to control the amount of the high and low frequency sound insulation. Samples were made for pool testing. The test results are in good agreement with the theoretical values and meet the requirements of the truncated parametric array. The structure communicates with the surrounding water medium and has the characteristic that the acoustic performance does not change with pressure.更多还原