潜艇转舵时舵叶材料及舵杆位置对流激噪声特性的影响  

Influence of rudder blade material and rudder stock position on characteristics of induced noise in submarine rudder turning

作　　者：彭利坤[1] 秦珩 陈佳宝 屈铎 PENG Likun;QIN Heng;CHEN Jiabao;QU Duo(College of Power Engineering,Naval University of Engineering,Wuhan 430033,China;The 92896 Unit of PLA,Dalian 116018,China)

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033 [2]中国人民解放军92896部队,辽宁大连116018

出　　处：《中国舰船研究》2022年第3期213-220,共8页Chinese Journal of Ship Research

基　　金：国家部委基金资助项目(995-0204020404)。

摘　　要：[目的]旨在探究舵翼组合结构对流激噪声的影响。[方法]在考虑流体与固体相互作用的前提下,采用双向流固耦合理论计算转舵过程中的流场及声场,研究舵叶材料、舵杆位置变化引起声振的规律。[结果]结果表明:在铝合金、钛合金和结构钢这3种材料中,结构钢舵引起的脉动压力波动最小,其一阶峰值点最后出现;随着舵杆位置的后移,一阶峰值频率和幅值均增大,而二阶频率随着舵杆位置的后移减小,且舵杆位置前移会使100 Hz频率范围内的总声压级降低。[结论]研究表明,结构钢舵的声振特性最好,在一定范围内舵杆位置前移可以改善舵翼组合结构的声振特性。获得的结果对潜艇舵结构的声学设计具有一定的指导意义,在一定程度上可提高潜艇声隐身性能。[Objective]This paper aims to explore the influence of rudder-fin combined structure on the induced noise. [Methods] To this end, the flow field and sound field of a rudder are calculated using the twoway fluid-structure interaction theory, and the sound vibration laws caused by the change of the rudder blade material and rudder stock position are studied.[Results]The results show that, among the three materials of aluminum alloy, titanium alloy and steel, the fluctuation of the fluctuating pressure caused by the steel rudder is the smallest, and the first peak point of the steel rudder appears last;the first-order peak frequency and amplitude increase with the backward movement of the rudder stock position, while the second-order frequency decreases with the backward movement of the rudder stock position;the forward movement of the rudder stock will reduce the total sound pressure level within 100 Hz. [Conclusions]Further analysis indicates that, the sound vibration characteristics of the steel rudder are the best among the three materials, and the forward movement of the rudder stock position can improve the sound vibration characteristics of the rudder-fin structure within a certain range. This study has certain guiding significance for the acoustic design of submarine rudder structures in order to improve the acoustic stealth performance of submarines to a certain extent.

关 键 词：潜艇操纵性 艉升降舵 转舵 流-固耦合 流激噪声 声振耦合 

分 类 号：U661.44[交通运输工程—船舶及航道工程]