中文摘要：

为研究吸声尖劈对船舶声纳平台声学环境的影响,开展了吸声尖劈对声纳平台水下声场影响的模型试验研究;通过在声纳平台结构0%,100%敷设吸声尖劈的情况,声波分0°,90°,180°方向入射,讨论了尖劈敷设方式、声波入射方式对声纳平台散射声场的影响,得到了声纳平台典型部位的声压分布。研究表明：吸声尖劈可明显改变声纳平台的声场分布,使声纳平台自噪声降低至少5dB,局部区域可降20dB以上,但其抑制效果随考核位置、声波频率的不同而各有变化。

英文摘要：

In order to study influence of sound absorption wedge on acoustic environment of ship sonar platform,experimental research of influence of sound absorption wedge on sound scattering field of sonar platform is carried out,by supposing entry angles of incident waves are 0°,90°,180°,respectively; while the arrangement density of sound absorption wedge is 0 %,100 %,sound pressure distribution of typical part is thus obtained. Study also shows that sound absorption wedge can change pressure distribution of sonar platform,and reduce self-noise level at least 5dB,and over 20dB with special location,however,the effect varies with the hot spot location and the frequency of acoustic wave.