平台基座结构参数对艇体振动声辐射影响分析
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- 英文论文题名：Report on the influence of structural parameters of foundation on submarine vibration and sound radiation
- 论文作者：张彤彤 ; 李永胜 ; 王纬波
- 英文论文作者：ZHANG Tong-tong ; LI Yong-sheng ; WANG Wei-bo ; China Ship Scientific Research Center ; National Key Laboratory on Vibration & Noise
- 年：2016
- 作者机构：中国船舶科学研究中心振动噪声国家重点实验室;
- 论文关键词：基座 ; 振动 ; 阻抗 ; 声辐射
- 英文论文关键词：foundation ; vibration ; impedance ; acoustic radiation
- 会议召开时间：2016-09-17
- 会议录名称：2016年度声学技术学术会议论文集
- 语种：中文
- 分类号：U661.44
- 学会代码：SXJS
- 会议名称：2016年度声学技术学术会议
- 会议地点：中国湖北武汉
- 主办单位：船舶振动噪声重点实验室、湖北省声学学会
- 学会名称：《声学技术》编辑部
- 页数：6
- 文件大小：473k
- 原文格式：D
- 会议级别：全国
摘要
论文研究了平台型基座的结构参数对基座阻抗及艇体振动与远场声辐射的影响规律。基座结构参数包括面板、腹板、肋板的厚度、基座腹板是否沿水舱面板上下偏置。研究结果表明:对于平台型基座,在平台及其支撑结构不变的情况下,增大基座面板厚度以及将基座腹板偏置可提高基座的输入机械阻抗,对降低艇体振动响应及远场声辐射作用明显。
Effects of foundation structure parameters on the foundation impedance, vibration transfer characteristics and far field acoustic radiation were analyzed. The parameters of foundation include the thickness of foundation panel, web plate and ribbed plate, the offset of foundation web plate to longitudinal component of water tank. The result shows that, for foundation structure, increasing the thickness of foundation panel can obviously raise the input impedance and transfer impedance, reduce the structure vibration response and far field acoustic radiation, as well as the offset of foundation web plate to longitudinal component of water tank.
Effects of foundation structure parameters on the foundation impedance, vibration transfer characteristics and far field acoustic radiation were analyzed. The parameters of foundation include the thickness of foundation panel, web plate and ribbed plate, the offset of foundation web plate to longitudinal component of water tank. The result shows that, for foundation structure, increasing the thickness of foundation panel can obviously raise the input impedance and transfer impedance, reduce the structure vibration response and far field acoustic radiation, as well as the offset of foundation web plate to longitudinal component of water tank.
引文
[1]孙建刚,邹明松,刘艳敏.船舶基座机械阻抗特性及简化数值建模方法[C].第十四届船舶水下噪声学术讨论会论文集,2013,172-178SUN Jiangang,ZOU Mingsong,LIU Yanmin.The mechanical impedance characteristics of foundations and a simplify numerical modeling method[C].14th academic seminar on underwater noise of ships,2013,172-178
[2]B Petersson;J Plunt.On Effective Mobilities in the Prediction of Structure-borne Sound Transmissions Between a Source Structure and a Receiving Structure[J].Theoretical Background and Basic experimental Studies,1982,82(4):517-529.
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[4]朱成雷,魏强,郑超凡,翁章卓,冯爱景.舰船典型基座输入机械阻抗特性分析[J].舰船科学技术,2015,37(6):57-60,64.ZHU Chenglei,WEI Qiang,ZHENG Chaofan,et al.Research on impedance characteristics of typical base for ship[J].Ship Science And Technology,2015,37(6):57-60,64.
[2]B Petersson;J Plunt.On Effective Mobilities in the Prediction of Structure-borne Sound Transmissions Between a Source Structure and a Receiving Structure[J].Theoretical Background and Basic experimental Studies,1982,82(4):517-529.
[3]胡玉超.舰艇结构声学设计与噪声预报技术研究[D].镇江:江苏科技大学硕士学位论文,2012.HU Yuchao.Investigation on Acoustic Design and Underwater Noise Prediction of Warship’s Structure[D].Zhenjiang:Jiangsu University of Science and Technology,2012.
[4]朱成雷,魏强,郑超凡,翁章卓,冯爱景.舰船典型基座输入机械阻抗特性分析[J].舰船科学技术,2015,37(6):57-60,64.ZHU Chenglei,WEI Qiang,ZHENG Chaofan,et al.Research on impedance characteristics of typical base for ship[J].Ship Science And Technology,2015,37(6):57-60,64.