噪声与振动控制2018，Vol.38Issue(3)：104-109,6.DOI:10.3969/j.issn.1006-1355.2018.03.019
基于声固耦合法的双体船水下近场噪声特性研究
Research on Characteristics of Underwater Noise in Near Field of a Catamaran based on Acoustic-structural Coupled Method
摘要
Abstract
Based on acoustic-structure coupling method, underwater noise radiation prediction models of a twin-sphere structure and a twin-hull craft are established respectively. The underwater noise characteristics in the near fields of the two structures under single-side or double-side excitations are analyzed. Study shows that the behavior of underwater noise radiation of the twin-sphere structure and the twin-hull craft is quite different from the single hull ship. Due to the existence of twin hulls of the craft, the underwater sound radiation varies greatly especially in the near field. The sound changes severely when standing wave appears in the region between the twin hulls if the distance of bilateral hulls and sound wave length satisfies certain conditions at certain frequencies This phenomenon will cause the noise bright point and a remarkable difference of characteristics of underwater noise in near field between a catamaran and a single-hull craft.关键词
声学/双体船/声固耦合法/水下噪声/噪声亮点Key words
acoustics/catamaran/acoustic-structural coupled method/underwater noise radiation/noise bright point分类
交通工程引用本文复制引用
宋旭,高晟耀,于博天,田宏业..基于声固耦合法的双体船水下近场噪声特性研究[J].噪声与振动控制,2018,38(3):104-109,6.基金项目
国家重点研发计划课题(2016YFC0303406) （2016YFC0303406）
总装预研基金资助项目(6140210020105) （6140210020105）
工信部高技术船舶重大创新专项课题资助项目 （）
国家自然科学基金资助项目(51209052) （51209052）
工信部高技术船舶资助项目 （）
中央高校基本科研业务费资助项目(HEUCFD1515、HEUCFM170113) （HEUCFD1515、HEUCFM170113）
中国博士后基金资助项目(2014M552661) （2014M552661）
