不同工况下潜艇艇体-桨整体声辐射特性分析  

Acoustic radiation characteristics analysis of submarine-propeller coupling under different operating conditions

作　　者：王甫江 桂洪斌 WANG Fujiang;GUI Hongbin(School of Ocean Engineering,Harbin Institute of Technology(Weihai),Weihai 264209,China)

机构地区：[1]哈尔滨工业大学(威海)海洋工程学院,山东威海264209

出　　处：《中国舰船研究》2023年第4期276-286,共11页Chinese Journal of Ship Research

摘　　要：[目的]旨在研究潜艇大侧斜螺旋桨在不同工况下的艇体-桨整体声辐射特性。[方法]以SUBOFF潜艇模型和七叶大侧斜螺旋桨为研究对象,采用大涡模拟(LES)和声学有限元方法(FEM),以及使用Fluent流体计算软件和LMS Virtual.Lab声学仿真计算软件进行联合仿真计算。[结果]结果表明:在潜艇存在进速的工况下,其艏部、指挥室围壳、艉部方向舵和螺旋桨区域的速度压力分布变化最大,整体系统的噪声传播方向以艇体周向某一方向的声压级(SPL)最高,艉部方向舵次之;在潜艇不存在进速的工况下,整体系统的噪声与螺旋桨的旋转作用有关,且在440 Hz频率处存在峰值,超过其他工况下的声压级。[结论]潜艇的艏部、指挥室围壳和艉部方向舵区域是压力脉动的重点区域,与潜艇的进速密切相关;艇体-桨整体螺旋桨噪声在低频段也主要由上述3个区域产生,在中高频段螺旋桨区域开始对艇体-桨整体噪声产生作用,总的声压级随着频率的增加而逐渐升高。[Objective]This paper aims to study the overall acoustic radiation properties of a submarine hull-propeller system with a seven-blade highly skewed propeller working under different operating condi-tions.[Methods]Taking the SUBOFF submarine model and a highly skewed propeller as the research ob-ject,the large eddy simulation(LES)and acoustic finite element method are adopted,and Fluent fluid calcula-tion software and LMS Virtual.Lab acoustic simulation software are used to carry out joint simulation calcula-tion.[Results]The results show that the velocity and pressure distributions in the bow,conning tower,stern rudder and propeller area change the most when the submarine has advance speed.The noise propagation dir-ection of the whole system has the highest sound pressure level(SPL)in a certain direction of the hull's cir-cumference,followed by the aft direction.When the submarine has no advance speed,the noise of the coup-ling system is related to the rotating action of the propeller,and there is a peak at the 440 Hz frequency,which exceeds the SPL under other operating conditions.[Conclusions]The three regions of the bow,conning tower and stern rudder are the key regions that generated pressure pulsation,which is closely related to the ad-vance speed of the submarine.In the low frequency band,the propeller noise is mainly generated by the bow,conning tower and stern rudder.In the middle and high-frequency bands,the overall submarine hull-propeller noise also begins to have an effect,and the total SPL increases gradually with the increase in frequency.

关 键 词：潜艇噪声 七叶大侧斜螺旋桨 声辐射 整体分析 联合仿真 

分 类 号：U664.33[交通运输工程—船舶及航道工程]