噪声与振动控制2016，Vol.36Issue(5)：99-103,5.DOI:10.3969/j.issn.1006-1335.2016.05.021
封闭水池中非自由场重建的实验方法
Experimental Research of Sound Field Reconstruction Method for Non-free Sound Field of Sealed Tanks
摘要
Abstract
In order to reconstruct the non-free acoustic field in an underwater sealed cavity, a new sound wave separation method based on single holographic plane is proposed. Spherical harmonic series expansion for sound pressure of different space positions is used to describe the target source and environment noise. By getting rid of the wave radiation from noise sources during sound field reconstruction procedure, the standing wave from the target source and the traveling wave from noise sources can be separated. The non-free sound field in the sealed tank with six reflection flats is reconstructed, and the standing wave from the target source can be obtained. The calculation results are compared with the measurement results in an anechoic pool. It can be found that the sound wave separation method based on single holography measurement plane can effectively reconstruct the underwater non-free sound field, the reconstruction error for the sound field produced by the radiation target sound source is less than 30%.关键词
声学/水下非自由声场/近场声全息/单层水听器阵列/声波分离Key words
acoustics/underwater non-free field/near field acoustic holography/single layer hydrophone array/sound wave separation分类
通用工业技术引用本文复制引用
金江明,王潇,卢奂采,李敏宗..封闭水池中非自由场重建的实验方法[J].噪声与振动控制,2016,36(5):99-103,5.基金项目
国家自然科学基金项目资助(51205354；51275469) （51205354；51275469）
