Theoretical and Experimental Study on the Acoustic Wave Energy After the Nonlinear Interaction of Acoustic Waves in Aqueous Media

作     者：兰朝凤 李凤臣 陈欢 卢迪 杨德森 张梦 LAN Chao-feng;LI Feng-chen;CHEN Huan;LU Di;YANG De-sen;ZHANG Meng

作者机构：School of Electrical and Electronic Engineering Harbin University of Science and Technology Energy Science and engineering Harbin Institute of Technology China Ship Design and Development Center Science and Technology on Underwater Acoustic Laboratory Harbin Engineering University 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2015年第29卷第4期

页      面：611-621页

核心收录：

学科分类：082403[工学-水声工程] 08[工学] 0824[工学-船舶与海洋工程] 

基　　金：financially supported by the Scientific Research Fund of Heilongjiang Provincial Education Department(Grant No.12541132) the Natural Science Youth Foundation of Heilongjiang Province of China(Grant No.QC2015082) 

主　　题：nonlinear interaction amplitude solution of the acoustic waves energy amplification of low-frequencyacoustic waves energy reduction of low-frequency acoustic waves 

摘      要：Based on the Burgers equation and Manley-Rowe equation, the derivation about nonlinear interaction of the acoustic waves has been done in this paper. After nonlinear interaction among the low-frequency weak waves and the pump wave, the analytical solutions of acoustic waves＇ amplitude in the field are deduced. The relationship between normalized energy of high-frequency and the change of acoustic energy before and after the nonlinear interaction of the acoustic waves is analyzed. The experimental results about the changes of the acoustic energy are presented. The study shows that new frequencies are generated and the energies of the low-frequency are modulated in a long term by the pump waves, which leads the energies of the low-frequency acoustic waves to change in the pulse trend in the process of the nonlinear interaction of the acoustic waves. The increase and decrease of the energies of the low-frequency are observed under certain typical conditions, which lays a foundation for practical engineering applications.