潜艇伴流场对螺旋桨激振力的影响  

Influence of wake field on propeller exciting force of submarine

作　　者：田畅 夏林生 付敏飞 梁宁[1] 秦世杰[3] 曹琳琳[1] 吴大转[1] TIAN Chang;XIA Linsheng;FU Minfei;LIANG Ning;QIN Shijie;CAO Linlin;WU Dazhuan(College of Energy Engineering,Zhejiang University,Hangzhou 310027,China;China Ship Development and Design Center,Wuhan 430064,China;Ocean College,Zhejiang University,Zhoushan 316021,China)

机构地区：[1]浙江大学能源工程学院,浙江杭州310027 [2]中国舰船研究设计中心,湖北武汉430064 [3]浙江大学海洋学院,浙江舟山316021

出　　处：《中国舰船研究》2023年第3期111-121,共11页Chinese Journal of Ship Research

基　　金：国家自然科学基金资助项目(52171326)。

摘　　要：[目的]潜艇附体结构会显著影响桨盘面处的伴流场,进而影响螺旋桨的激振力特性。掌握伴流场特性对激振力的影响规律有助于潜艇和螺旋桨低激振设计。[方法]基于Suboff潜艇模型和INSEAN E1619螺旋桨,采用RANS方法对不同附体伴流场下艇后螺旋桨的激振力进行数值模拟,并使用谐调分析方法对桨盘面处伴流场进行定量表征,然后再结合螺旋桨瞬态流场的分布特性,揭示线谱激振力的产生机理。[结果]结果显示,伴流场谐调分量各阶数的分布情况与单叶片激振力线谱的分布一致,且单叶片激振力主频处的相对幅值与七叶片螺旋桨基本相等;周向对称的艉舵对伴流场谐调分量的影响主要集中在4阶和8阶,对七叶螺旋桨激振力的影响较小;围壳影响伴流场各阶的谐调分量,对七叶螺旋桨激振力起主要作用。[结论]艉舵对激振力的影响小于围壳,为改善螺旋桨激振力特性,应重点对潜艇围壳进行优化。[Objective]The appendages of a submarine affect the wake field at the propeller disk,which in turn affects the exciting force characteristics of the propeller.Grasping the influence law of the wake field on the exciting force is helpful for the low-excitation force design of submarines and propellers.[Method]Based on the Suboff Model and INSEAN E1619 propeller,the RANS method is used to numeric-ally simulate the propeller exciting force under wake fields affected by different appendages,and the harmon-ic analysis method is used to quantitatively characterize the wake fields at the propeller disk.The mechanism of the linear spectrum exciting force is revealed by combining the distribution characteristics of the transient flow field of the propeller.[Results]The results show that the distribution of each order of the harmonic components of the wake field is consistent with the distribution of a single-blade linear spectrum exciting force,and the relative amplitude of the single-blade exciting force in its main frequency is basically equal to that of a seven-blade propeller.The harmonic components of circumferential symmetrical rudders to the wake field are mainly concentrated on the fourth and eighth orders,and have little effect on the exciting force of a seven-blade propeller;however,fairwaters influence the harmonic components of the wake field and have a major effect on the exciting force of a seven-blade propeller.[Conclusion]The influence of rudders on pro-peller exciting force is less than that of fairwaters.In order to improve the exciting force characteristics of pro-pellers,the optimization of submarine fairwaters should be emphasized.

关 键 词：潜艇 伴流场 谐调分析 螺旋桨 激振力 

分 类 号：U664.31[交通运输工程—船舶及航道工程]