【作者】 刘进； 吴登峰； 宋佳倩； 俞孟萨；

【Author】 LIU Jin;Wu Dengfeng;Song Jiaqian;YU Mengsa;China Ship Scientific Research Center;Taihu Laboratory of Deep-sea Technological Science;

【机构】 中国船舶科学研究中心； 深海技术科学太湖实验室；

【摘要】 将声呐部位简化为一个弹性加肋板与一个5面刚性腔体组合的规则模型,采用基于数值/解析混合的声呐部位水动力自噪声快速计算方法,数值研究了声呐透声窗加强肋骨不同斜置角度对水动力自噪声的影响规律。计算结果表明:透声窗垂向肋骨斜置角度增加,会使水动力自噪声增加。在声呐透声窗加肋结构低噪声设计时,应尽量避免或减小肋骨斜置。更多还原

【Abstract】 the sonar part is simplified into a regular model composed of an elastic ribbed plate and a five-sided rigid rectangular cavity. a fast calculation method for the hydrodynamic self-noise of the sonar part which is based on the hybrid numerical and analytical method is adopted to research on the effect of different skew ribs on hydrodynamic self-noise of sonar acoustic window. The results show that the hydrodynamic self-noise will increase with the increase of skew angle of the acoustic window ribs. In the low noise design of the ribbed structure of sonar acoustic windows, the skew ribs should be avoided or reduced as far as possible.更多还原