仿生螺旋桨噪声性能预报分析  

Prediction and analysis of acoustic performance of bionic propellers

作　　者：郭春雨[1] 曹绪祥 张海鹏[1] 姜慧[2] GUO Chun-yu;CAO Xu-xiang;ZHANG Hai-peng;JIANG Hui(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China;Marine Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]哈尔滨工程大学船舶工程学院,哈尔滨150001 [2]中国船舶及海洋工程设计研究院,上海200011

出　　处：《船舶力学》2020年第9期1224-1232,共9页Journal of Ship Mechanics

基　　金：国家自然科学基金项目(51409063;51209048);工信部高技术船舶科研项目(G014613002)。

摘　　要：为了研究螺旋桨结构形式对其噪声性能的影响,本文基于某原型桨采用不同设计方案得到不同系列的仿生螺旋桨,利用ACTRAN软件对其进行噪声性能预报分析。将大涡模拟数值计算结果与螺旋桨敞水试验数据比对,验证了大涡模拟数值计算结果的可靠性;在已获得流场信息的基础上对螺旋桨噪声进行计算;根据计算结果,对各系列螺旋桨模型噪声特征点频谱、声指向性、声压云图及衰减特性进行了分析。结果表明,合理地布置凹凸结构、锯齿形叶梢能在一定程度上改善螺旋桨噪声性能。In order to study the influence of propeller structure on its acoustic performance,different design schemes are used in this paper to obtain different series of bionic propellers based on a prototype propeller,followed by utilization of the software ACTRAN to forecast and analyze its acoustic performance.Large eddy simulation numerical results are compared with the experimental data of open water tests to verify the reliability of large eddy simulation numerical results while the propeller noise is calculated on the basis of the flow field information obtained.According to the calculation results,the frequency spectra,directivity of the noise at characteristic points,sound pressure contours and attenuation characteristics are analyzed,the results of which show that reasonable arrangement of the uneven structure and the serrated blade tip can improve the acoustic performance of the propeller to a certain extent.

关 键 词：仿生 座头鲸 凹凸结构 锯齿 螺旋桨噪声 

分 类 号：O427.5[理学—声学]