含空腔的功能梯度声学覆盖层水下吸声特性

师康康; 靳国永; 叶天贵; 王雪仁; 缪旭弘

doi:10.15949/j.cnki.0371-0025.2021.03.008

含空腔的功能梯度声学覆盖层水下吸声特性

1. 哈尔滨工程大学动力与能源工程学院哈尔滨 150001;
2. 中国人民解放军 92578部队北京 100161

基金项目:

国家自然科学基金项目(51822902,51775125,51709066)和中央高校基本科研业务费专项资助

详细信息

通讯作者:
靳国永,E-mail:guoyongjin@hrbeu.edu.cn

PACS:
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- 文章访问数: 165
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出版历程
- 收稿日期: 2020-01-02
- 修回日期: 2020-07-25
- 网络出版日期: 2022-06-24
- 刊出日期: 2022-06-24

Underwater sound absorption performance of functionally graded anechoic coating with cavities

1. College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001;
2. Naval Academy of Armament, Beijing 100161

摘要

摘要: 针对传统的声学覆盖层吸声频带窄的问题,基于功能梯度材料的特点提出了一种含空腔结构的水下功能梯度声学覆盖层结构,引入梯度有限元法建立了功能梯度型声学覆盖层的水下声学计算模型,研究了功能梯度声学覆盖层结构的水下吸声特性。与传统的功能梯度结构声学建模方法相比,在保证计算精度和计算效率的基础上,文中所建立的功能梯度结构声学计算模型可适用于更复杂的功能梯度声学结构声学性能评估。研究结果表明,功能梯度声学覆盖层能够有效改善中高频段的吸声性能,获得较好的宽频吸声效果。此外,空腔形状采用锥型空腔结构或者组合型空腔结构可以有效地拓宽功能梯度声学覆盖层的吸声频带。
- 功能梯度材料 /
- 声学覆盖层 /
- 梯度有限元法 /
- 吸声特性
Abstract: In order to overcome the drawback that the sound absorption band of traditional cavity resonance anechoic coating is narrow,the functionally graded anechoic coating with periodic voids is designed in this paper according to the characteristics of Functionally Graded Materials(FGMs),and the Graded Finite Element Method(G-FEM) is employed to establish the underwater acoustic calculation model for functionally graded anechoic coating,and then the underwater sound performance of functionally graded anechoic coating is investigated.Compared with the traditional method for establishing the acoustic model of functionally graded structure,the proposed method can be extended to establish the acoustic model for much more complex functionally graded structures on the basis of ensuring calculation accuracy and efficiency.Numerical results indicate that,the functionally graded anechoic coating can improve the sound absorption performance in the middle and high frequency bands and wideband sound absorption can be achieved.In addition,the absorption frequency band of functionally graded anechoic coating can be effectively broadened by embedding the conical cavity or the combined cavity compared with the cylindrical cavity.
- Functionally graded materials (FGMs) /
- Anechoic coating /
- Graded finite element method (G-FEM) /
- Sound absorption performance

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1.	应江，陈文炯. 静压下含螺旋体空腔型覆盖层的吸声特性研究. 舰船科学技术. 2025(01): 113-119 . 百度学术
2.	贾薪宇，靳国永，叶天贵. 静水压力下水下声学覆盖层技术研究现状（英文）. Journal of Marine Science and Application. 2025(01): 137-151 . 百度学术
3.	俞白兮，李凯，张峰，司马灿. 敷设分层梯度声学覆盖层的加肋圆柱壳声辐射特性研究. 船舶力学. 2024(02): 294-308 . 百度学术
4.	王世博，胡博，张昊阳，陈骋，陈峰. 含覆层圆柱空腔的声学材料水下吸声特性研究. 振动与冲击. 2024(14): 103-111+141 . 百度学术
5.	贾薪宇，靳国永，叶天贵，闫燕. 静压下带金属孔板声学覆盖层的耐压与吸声特性. 振动工程学报. 2024(07): 1211-1220 . 百度学术

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文章访问数: 165
HTML全文浏览量: 7
PDF下载量: 31
被引次数: 19

含空腔的功能梯度声学覆盖层水下吸声特性

通讯作者: 靳国永,E-mail:guoyongjin@hrbeu.edu.cn

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出版历程

Underwater sound absorption performance of functionally graded anechoic coating with cavities

期刊类型引用(5)

其他类型引用(14)

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出版历程

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通讯作者:
靳国永,E-mail:guoyongjin@hrbeu.edu.cn