水下双层壳结构隔声数值计算研究
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- 英文论文题名：The numerical study of sound insulation of underwater double-shell structure
- 论文作者：曹培政 ; 商德江 ; 刘永伟 ; 张超
- 英文论文作者：CAO Pei-zheng ; SHANG De-jiang ; LIU Yong-wei ; ZHANG Chao ; Harbin Engineering University Laboratory of Underwater Acoustic Technology ; Harbin Engineering University ; College of Underwater Acoustic Engineering
- 年：2016
- 作者机构：哈尔滨工程大学水声技术重点实验室;哈尔滨工程大学水声工程学院;
- 论文关键词：水下双层罩 ; 质量效应 ; 阻抗失配
- 英文论文关键词：Underwater double cover ; Mass Effect ; impedance mismatch
- 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：U661.44
- 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：387k
- 原文格式：D
- 会议级别：全国
摘要
现今,空气中发动机等的隔声降噪研究比较多,而对水下的电机隔振隔声研究较少,水下双层壳结构隔声研究日益成为水下声场研究关注的重要课题。本文结合质量效应,阻抗失配,吸声隔声等隔声原理,建立双层壳模型,采用Virtual Lab等声学仿真软件进行声场计算,结合有限元方法解决声振耦合问题,分析水下双层隔声罩不同工况下声场的变化特点,以此来研究水下双层隔声罩质量效应,阻抗失配,吸声隔声隔声等机理对隔声效果的影响。
Nowadays, the research of noise reduction of engines is mature in the air. However, the noise isolation of underwater motor is less. Underwater double insulation structure is increasingly becoming an important issue in the research of underwater acoustic field. In this paper, based on the principle of mass effect, impedance mismatch and acoustic insulation, the double shell model is built up. The sound field has been calculated by the software, Virtual Lab. The acoustic coupling problems is solved by finite element method. The change of sound field from submerged double enclosures under different conditions has been analyzed. Also, the mass effect, the impact of impedance mismatch, acoustic noise insulation and other mechanisms of sound insulation have been investigated.
Nowadays, the research of noise reduction of engines is mature in the air. However, the noise isolation of underwater motor is less. Underwater double insulation structure is increasingly becoming an important issue in the research of underwater acoustic field. In this paper, based on the principle of mass effect, impedance mismatch and acoustic insulation, the double shell model is built up. The sound field has been calculated by the software, Virtual Lab. The acoustic coupling problems is solved by finite element method. The change of sound field from submerged double enclosures under different conditions has been analyzed. Also, the mass effect, the impact of impedance mismatch, acoustic noise insulation and other mechanisms of sound insulation have been investigated.
引文
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[3]曾革委.潜艇结构辐射噪声的建模、求解及其声特性研究.华中科技大学博士学位论文.2002.Revolutionary Council had Modeling of Submarine Structure Solution of the radiated noise,and acoustic characteristics.Huazhong University of Science and Doctoral Thesis.2002.
[4]何祚镛.结构振动与声辐射.哈尔滨:哈尔滨工程大学出版社.2001:82 120 113 117 67 109.He Zuo Yong structural vibration and acoustic radiation Harbin:Harbin Engineering University Press,2001:8,212,011,311,767,109
[5]何琳,朱海潮,邱小军,杜功焕.声学理论与工程应用.北京:科学出版社.2006:168 230 222 266 228 213 268 226 243 273 256 335356 349 358.He Lin,Zhu tide,Qiu Xiaojun,Dugong Huan acoustic theory and practical application of Beijing:Science Press,2006:168,230,222,266,228 213,268,226,243,273 256,335,356,349,358
[6]俞孟萨,叶剑平,吴有生,吕世金.船舶声呐部位自噪声的预报方法及其控制技术.船舶力学.2002,6(5):80-94.Yu Mong Hsat,Ye Jianping,Wu Yousheng,Lvshi gold forecasting methods and control of the ship sonar self-noise technology Ship Mechanics 2002,6(5):pages 80-94
[7]Graham W R.The influence of curvature on the sound radiated by vibrating panels.J.Acoust.Soc.Am.1995,98(3):1581-1595P
[2]张军锋,王敏庆.刘彦森.空气中及水下单层结构的隔声相似性研究与实验验证.声学技术。2007年第4期:683-686Zhang Junfeng,Wang Minqing.Liu Yansen air and underwater noise in single-layer structure Similarity Research and experimental verification.Acoustic technology.2007(4):683-686
[3]曾革委.潜艇结构辐射噪声的建模、求解及其声特性研究.华中科技大学博士学位论文.2002.Revolutionary Council had Modeling of Submarine Structure Solution of the radiated noise,and acoustic characteristics.Huazhong University of Science and Doctoral Thesis.2002.
[4]何祚镛.结构振动与声辐射.哈尔滨:哈尔滨工程大学出版社.2001:82 120 113 117 67 109.He Zuo Yong structural vibration and acoustic radiation Harbin:Harbin Engineering University Press,2001:8,212,011,311,767,109
[5]何琳,朱海潮,邱小军,杜功焕.声学理论与工程应用.北京:科学出版社.2006:168 230 222 266 228 213 268 226 243 273 256 335356 349 358.He Lin,Zhu tide,Qiu Xiaojun,Dugong Huan acoustic theory and practical application of Beijing:Science Press,2006:168,230,222,266,228 213,268,226,243,273 256,335,356,349,358
[6]俞孟萨,叶剑平,吴有生,吕世金.船舶声呐部位自噪声的预报方法及其控制技术.船舶力学.2002,6(5):80-94.Yu Mong Hsat,Ye Jianping,Wu Yousheng,Lvshi gold forecasting methods and control of the ship sonar self-noise technology Ship Mechanics 2002,6(5):pages 80-94
[7]Graham W R.The influence of curvature on the sound radiated by vibrating panels.J.Acoust.Soc.Am.1995,98(3):1581-1595P