水下航行器噪声的线谱分布特征是其被探测、识别的重要信息,直接决定其在复杂海洋环境中的生存力和战斗力。本文围绕水下航行器线谱振动噪声展开回顾总结,系统梳理水下航行器线谱振动噪声的形成机理、频谱特性以及噪声传递路径;研究水下航行器振动声辐射预报方法,频域上基于SEA,FEM预报稳态声场,时域上基于波动理论分析瞬态声场;从被动控制、主动控制、其他控制等角度,分析近年来国内外线谱振动噪声控制进展;给出了噪声智能识别监测系统、基于态势感知的噪声快速预报技术、噪声动态控制技术一体化的未来发展趋势。
The line spectrum distribution characteristics of underwater vehicle noise is a vital statistics for its detection and identification, which directly determines its survivability and combat effectiveness in the complicated ocean environment. In this paper, the formation mechanism, spectrum characteristics, and noise transmission path of the line spectrum vibration noise of the underwater vehicle are systematically sorted out. The prediction methods of vibration and acoustic radiation of underwater vehicle are researched. The steady sound field is predicted based on SEA and FEM in the frequency domain, and the transient sound field is analyzed based on wave theory in the time domain. The research progress of line spectrum vibration and noise control at home and abroad in recent years is analyzed from the perspectives of passive control, active control, and chaos control. The future development trend of the integration of noise intelligent identification and monitoring systems, fast noise prediction technology based on Situation awareness, and noise dynamic control technology is presented.
2023,45(9): 1-8 收稿日期:2022-10-31
DOI:10.3404/j.issn.1672-7649.2023.09.001
分类号:U661.44
基金项目:国家自然科学基金资助项目(52101351)
作者简介:苏常伟(1990-),男,博士,工程师,研究方向为舰船结构振动噪声