导流罩材料对罩内水动力噪声的影响研究
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- 英文论文题名：The research on influences of dome materials on hydrodynamic noise inside bulbous bow
- 论文作者：付圣峰 ; 商德江 ; 刘永伟
- 英文论文作者：FU Sheng-feng ; SHANG De-jiang ; LIU Yong-wei ; Acoustic Science and Technology Laboratory ; College of Underwater Acoustic Engineering ; Harbin Engineering University
- 年：2016
- 作者机构：哈尔滨工程大学水声技术重点实验室水声工程学院;
- 论文关键词：导流罩 ; 水动力噪声 ; 大涡模拟 ; 有限元 ; 无限元 ; 降噪优化
- 英文论文关键词：bow dome ; hydrodynamic noise ; large eddy simulation ; finite element method ; infinite element method ; nu merical study ; noise reduction optimization
- 会议召开时间：2016-10-28
- 会议录名称：2016年全国声学学术会议论文集
- 语种：中文
- 分类号：U674.70
- 学会代码：OGSM
- 会议名称：2016年全国声学学术会议
- 会议地点：中国湖北武汉
- 主办单位：中国声学学会
- 学会名称：中国声学学会
- 页数：4
- 文件大小：459k
- 原文格式：D
- 会议级别：全国
摘要
球鼻艏不仅减少了舰船的兴波阻力,也保证了声呐基阵有良好的工作环境。但是其会受到水动力噪声的干扰。因此,降低球鼻艏内水动力噪声对提高声呐工作效率有重要影响。本文简要阐述了水动力噪声计算基本理论,并建立计算模型,通过流场计算软件FLUENT,用大涡模拟(LES)方法计算模型流场,将得到的流场数据导入声场计算软件ACTRAN中,采用有限元及无限元结合方法计算声场。研究了在相同构造下,钛合金、玻璃钢和橡胶这三种材料制成的球鼻艏导流罩,在同一流速下,罩体内部水动力噪声的变化情况。计算结果表明:钛合金降噪优化效果最好,玻璃钢降噪效果次之,橡胶降噪效果最差,钛合金的降噪性能要比玻璃钢高15d B以上。本文的这些研究结果为低噪声、高透声性能球鼻艏结构的设计提供了参考。
Bulbous bow is helpful not only to reduce wave-making resistance,but also to offer good environment to sonar.However,it can be influenced by hydrodynamic noise.Therefore,Reducing the noise has important influence on improving sonar's working efficiency.This paper has simply stated basic calculation theory of hydrodynamic noise,and create the model,calculate fluid field data with the method LES,and calculate acoustic field data with the method FEM and IFEM.This paper compares noise reduction effects of three different materials(Ti Alloy,Fiberglass,Rubber)in the same structure and fluid condition.The results have demonstrated that material Ti Alloy has the best effect among three;Fiberglass is second;Rubber is the worst,the result of the material Ti Alloy is lower by 15 d B than the material Fiberglass.The results of this study offer some reference to design on sonar dome which needs low noise and high sound transmission in the future.
Bulbous bow is helpful not only to reduce wave-making resistance,but also to offer good environment to sonar.However,it can be influenced by hydrodynamic noise.Therefore,Reducing the noise has important influence on improving sonar's working efficiency.This paper has simply stated basic calculation theory of hydrodynamic noise,and create the model,calculate fluid field data with the method LES,and calculate acoustic field data with the method FEM and IFEM.This paper compares noise reduction effects of three different materials(Ti Alloy,Fiberglass,Rubber)in the same structure and fluid condition.The results have demonstrated that material Ti Alloy has the best effect among three;Fiberglass is second;Rubber is the worst,the result of the material Ti Alloy is lower by 15 d B than the material Fiberglass.The results of this study offer some reference to design on sonar dome which needs low noise and high sound transmission in the future.
引文
[1]俞孟萨,朱正道.集成统计能量法计算声呐自噪声水动力噪声分量[J].船舶力学,2007,11(2):274-283.
[2]G.M.Corcos.Resolution of Pressure in Turbulence[J].THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,1963,35(2):192-199.
[3]Abdelmeguid A.M.,Markatos N.C.C.,Spalding D.B..A Method of Predicting Three-Dimensional Turbulent Flows Around Ship’s Hull.International Symposium on Ship Viscous Resistance,SSPA,Goteborg,1978.
[4]Patankar S.V.,Spalding D.B..A Calculation Procedure for Heat,Mass and Momentum Transfer in Three-Dimensional Parabolic Flow.Int.J.Heat Mass Transfer,1972.
[5]傅慧萍,缪国平.大涡模拟在噪声计算中的应用[J].上海交通大学学报,2009,43(8):1307-1316.
[6]陈伟.水下结构流固耦合及声辐射数值方法研究[D].武汉:华中科技大学,2009.
[7]张永鸥,张涛.基于Lighthill声类比的流激噪声三维计算及验证[J].舰船科学技术学报,2014,3(9).
[8]李源源.舰艇新型球鼻首结构设计探索[J].船舶工程,2007,29(3):58-60.
[2]G.M.Corcos.Resolution of Pressure in Turbulence[J].THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,1963,35(2):192-199.
[3]Abdelmeguid A.M.,Markatos N.C.C.,Spalding D.B..A Method of Predicting Three-Dimensional Turbulent Flows Around Ship’s Hull.International Symposium on Ship Viscous Resistance,SSPA,Goteborg,1978.
[4]Patankar S.V.,Spalding D.B..A Calculation Procedure for Heat,Mass and Momentum Transfer in Three-Dimensional Parabolic Flow.Int.J.Heat Mass Transfer,1972.
[5]傅慧萍,缪国平.大涡模拟在噪声计算中的应用[J].上海交通大学学报,2009,43(8):1307-1316.
[6]陈伟.水下结构流固耦合及声辐射数值方法研究[D].武汉:华中科技大学,2009.
[7]张永鸥,张涛.基于Lighthill声类比的流激噪声三维计算及验证[J].舰船科学技术学报,2014,3(9).
[8]李源源.舰艇新型球鼻首结构设计探索[J].船舶工程,2007,29(3):58-60.