中国海洋工程（英文版）
中國海洋工程（英文版）
중국해양공정（영문판）
CHINA OCEAN ENGINEERING
2015年
4期
610-620
,共11页
兰朝凤%李凤臣%陈欢%卢迪%杨德森%张梦
蘭朝鳳%李鳳臣%陳歡%盧迪%楊德森%張夢
란조봉%리봉신%진환%로적%양덕삼%장몽
nonlinear interaction%amplitude solution of the acoustic waves%energy amplification of low-frequency acoustic waves%energy reduction of low-frequency acoustic waves
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.
