利用逐次近似法对三维非规则弹性海底条件下声传播特点的分析  

Characteristics of sound propagation in sea with 3-dimensional irregular elastic bottom

作　　者：杨士莪 YANG Shi′e(Acoustic Science and Technology Laboratory,Harbin Engineering University,Harbin 150001,China;Key Laboratory of Marine Information Acquisition and Security(Harbin Engineering University),Ministry of Industry and Information Technology,Harbin 150001,China;College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学水声技术重点实验室 [2]海洋信息获取与安全工业和信息化部重点实验室(哈尔滨工程大学) [3]哈尔滨工程大学水声工程学院

出　　处：《哈尔滨工程大学学报》2020年第2期161-165,共5页Journal of Harbin Engineering University

基　　金：国防科技创新特区项目

摘　　要：针对三维非规则弹性海底条件下声传播问题,提出了采用逐次近似法的求解计算方法,并就一个特例给出相应的解析解。结果表明在倾斜海底条件下声传播的水平折射效应,和沿海底界面传播的界面波特点。Related formulae for solving sound propagation in sea with three-dimensional elastic bottom are given, and the result for one special case had been solved. It shows the horizontal diffraction of sound wave due to inclined bottom, and characteristics of the interface wave.

关 键 词：逐次近似 三维 弹性海底 倾斜海底 水平折射 界面波 声传播 波动方程 

分 类 号：O427.1[理学—声学]