噪声与振动控制2025，Vol.45Issue(2)：21-25,31,6.DOI:10.3969/j.issn.1006-1355.2025.02.004
协同耦合的水下宽带吸声覆盖层研究
Synergistic Coupling Sound Absorption of Broadband Underwater Anechoic Coating
摘要
Abstract
An underwater anechoic coating model embedded with elastic metal plates and cavities was established to study its sound absorption performance under the condition of semi-infinite water at both the incident end and the transmis-sion end.The relationship between the sound absorption performances of the double-cell structure and the coupling sound ab-sorption of the units was analyzed,and the absorption mechanism and characteristics of the synergistic coupling were ex-plained according to the displacement field and the energy dissipation power distribution.Based on the genetic algorithm,the structural parameters of the double-cell model with parallel coupling were optimized.The results show that the sound ab-sorption coefficient in the range from 1 460 Hz to 10 kHz exceeds 0.8,and the average sound absorption coefficient is 0.95,which achieves the broadband high sound absorption effect.Introducing steel ribs can provide sufficient rigidity and mean-while maintain the excellent sound absorption performance even under the condition of hydrostatic pressure of 2.5 MPa.关键词
水下声学/宽带吸声/遗传算法/协同耦合吸声Key words
acoustics/broadband acoustic absorption/genetic algorithm/synergistic coupling sound absorption分类
通用工业技术引用本文复制引用
杨将政,应童,陶猛..协同耦合的水下宽带吸声覆盖层研究[J].噪声与振动控制,2025,45(2):21-25,31,6.基金项目
国家自然科学基金资助项目(52265010) （52265010）
贵州省科学技术基金资助项目(黔科合基础[2020]1Z048) （黔科合基础[2020]1Z048）
