船舶螺旋桨—艉部流场互作用噪声的研究(英文)  

Study on Noise Induced by Marine Propeller -SternFlow Field Interaction

作　　者：朱锡清[1] 孙红星[1] 何凌[1] 唐登海[1] 周伟新[1] 

机构地区：[1]中国船舶科学研究中心,无锡214082

出　　处：《船舶力学》2000年第6期61-68,共8页Journal of Ship Mechanics

摘　　要：由螺旋桨引起的互作用噪声构成了船舶中高速航行时整个辐射噪声的重要部分。由螺旋桨叶片和船舶艉部非均匀流场相互作用引起了低频离散谱噪声。由螺旋桨叶片和艉部湍流场相互作用产生了螺旋桨低频宽带噪声。利用升力面理论和声学方法得到的离散谱噪声的预报公式 ,对螺旋桨不同直径、侧斜、纵倾对离散谱噪声的影响作了数值计算 ,并得到了工程上有实用意义的结果。在分析螺旋桨低频宽带噪声成因的基础上得到了理论分析方法 ,并作了数值计算。整个方法不仅对船舶螺旋桨噪声预报提供了十分重要的工具 ,而且对螺旋桨的噪声控制也有重要的实用价值。The interaction noise induced by propeller has constituted the main part of the noise radiated from the medium-speed or high-speed marines.The low-frequency discrete noise of propeller is induced by the interaction between the blades of the propeller and non-uniform inflow of the marine stern.And the low-frequency broadband noise of the propeller is produced by the interaction between the blades and stern turbulence field.With a numerical calculation based on a combination of lifting surface theory and acoustic technique,the effects of different diameters, skews and rakes on the discrete noise of the propeller are studied, and some practical results for engineering are obtained. According to the mechanism of the low-frequency broadband noise of the propeller,theoretical analysis and numerical calculations are also presented in this paper.The methods will not only make a key tool for noise prediction,but also have practical value on the control of the propeller noise.

关 键 词：螺旋桨 艉部流场 噪声 互作用噪声 船舶 

分 类 号：TB533.2[理学—物理] U664.33[理学—声学]