敷设声学覆盖层水下壳体目标强度特性研究
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- 英文论文题名：The sound scattering study of underwater shell coated with acoustic coatings
- 论文作者：潘明 ; 温激鸿 ; 尹剑飞
- 英文论文作者：PAN Ming ; WEN Ji-hong ; YIN Jian-fei ; Laboratory of Science and Technology on Integrated Logistics Support ; College of Mechatronic Engineering and Automation ; National University of Defense Technology
- 年：2016
- 作者机构：国防科学技术大学装备综合保障技术重点实验室;
- 论文关键词：声散射 ; 声学覆盖层 ; 有限元法
- 英文论文关键词：underwater insulation ; Alberich layer ; insulation mechanisms ; static pressure
- 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：O427
- 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：659k
- 原文格式：D
- 会议级别：全国
摘要
本文研究了敷设Alberich空腔型和局域共振型声学覆盖层无限长圆柱壳体结构水下目标强度特性。基于有限元法,通过对含有微结构的复杂声学覆盖层及敷设壳体进行完整几何建模,计算其水下声散射特性。在此基础上,分析壳体敷设声学覆盖层前后目标强度变化规律,研究声学覆盖层与壳体之间相互作用对目标整体声散射特性影响规律,为声学覆盖层的设计提供依据。
This paper studies the underwater Target Strength(TS) properties of infinitely long elastic shells coated with Alberich and locally resonant coatings. Finite element method(FEM) is used to calculate the sound scattering of the coated shell considering a full-scale model by construing the exact geometries of the complex coating. Based on this, the TS of the coated shell and uncoated shell are calculated and compared. Furthermore the coupling mechanism between the coating and the shell and its effect on the TS are analyzed, and provide guidelines for the design of the acoustic coatings.
This paper studies the underwater Target Strength(TS) properties of infinitely long elastic shells coated with Alberich and locally resonant coatings. Finite element method(FEM) is used to calculate the sound scattering of the coated shell considering a full-scale model by construing the exact geometries of the complex coating. Based on this, the TS of the coated shell and uncoated shell are calculated and compared. Furthermore the coupling mechanism between the coating and the shell and its effect on the TS are analyzed, and provide guidelines for the design of the acoustic coatings.
引文
[1]唐锐,李琪.水下壳体结构低频声辐射预报方法与试验测试技术研究[D].哈尔滨.哈尔滨工程大学.2013.
[2]黄凌志,肖勇,温激鸿,杨海滨,温熙森.一种含横向圆柱形空腔的声学覆盖层的去耦机理分析[J].2015 Acta Phys.Sin.64154301.
[3]吕林梅,温激鸿,赵宏刚,孟浩,温熙森.内嵌不同形状散射子的局域共振型粘弹性覆盖层低频吸声性能研究[J].2012 Acta Phys.sin.61 214302.
[4]张玉玲.敷设吸声层的水下复杂目标回波特性研究[D].上海交通大学,2009.
[5]商超.消声瓦的吸声机理研究[D].哈尔滨工业大学,2011.
[6]PPeter Schroder.Natural Hierarchical Refinement for Finite Element Methods[D].University of California,San Diego,Structural Engineering.
[7]S.Gopalakrishnan,A.Chakraborty.D.Roy Mahapatra.Spectral Finite Element Method[M].Springer.2007.
[8]王勖成.有限单元法[M].北京:清华大学出版社.2002.
[9]WEN J H,ZHAO H G,LV L M,et al.Effects of locally resonant modes on underwater sound absorption in viscoelastic materials[J].J.Acoust.Soc.Am.2011,130(3):1201-1208.
[2]黄凌志,肖勇,温激鸿,杨海滨,温熙森.一种含横向圆柱形空腔的声学覆盖层的去耦机理分析[J].2015 Acta Phys.Sin.64154301.
[3]吕林梅,温激鸿,赵宏刚,孟浩,温熙森.内嵌不同形状散射子的局域共振型粘弹性覆盖层低频吸声性能研究[J].2012 Acta Phys.sin.61 214302.
[4]张玉玲.敷设吸声层的水下复杂目标回波特性研究[D].上海交通大学,2009.
[5]商超.消声瓦的吸声机理研究[D].哈尔滨工业大学,2011.
[6]PPeter Schroder.Natural Hierarchical Refinement for Finite Element Methods[D].University of California,San Diego,Structural Engineering.
[7]S.Gopalakrishnan,A.Chakraborty.D.Roy Mahapatra.Spectral Finite Element Method[M].Springer.2007.
[8]王勖成.有限单元法[M].北京:清华大学出版社.2002.
[9]WEN J H,ZHAO H G,LV L M,et al.Effects of locally resonant modes on underwater sound absorption in viscoelastic materials[J].J.Acoust.Soc.Am.2011,130(3):1201-1208.