宽带高效吸声复合材料吸声器的优化设计与实验验证

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2021-12-01 DOI:10.1016/j.apacoust.2021.108288

Nansha Gao, Zhicheng Zhang

{"title":"宽带高效吸声复合材料吸声器的优化设计与实验验证","authors":"Nansha Gao, Zhicheng Zhang","doi":"10.1016/j.apacoust.2021.108288","DOIUrl":null,"url":null,"abstract":"<div><p>The average sound absorption coefficient<span><span> of a composite absorber from 0 to 1.6 kHz was maximized using a teaching–learning-based optimization algorithm, where the geometric parameters were used as optimization variables. The effective-medium model and transfer-matrix method were used to calculate the sound absorption coefficient, and optimized sound absorption coefficient was maximized at 0.938. The specific </span>acoustic impedance of the material is almost perfectly matched with air thanks to the optimized size of the lateral plates, micro-perforated plates, and cavities. Experimental results confirm the theoretical calculation, showing the investigated passive acoustic design method of designing sound absorber.</span></p></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"183 ","pages":"Article 108288"},"PeriodicalIF":3.4000,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.apacoust.2021.108288","citationCount":"11","resultStr":"{\"title\":\"Optimization design and experimental verification of composite absorber with broadband and high efficiency sound absorption\",\"authors\":\"Nansha Gao, Zhicheng Zhang\",\"doi\":\"10.1016/j.apacoust.2021.108288\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The average sound absorption coefficient<span><span> of a composite absorber from 0 to 1.6 kHz was maximized using a teaching–learning-based optimization algorithm, where the geometric parameters were used as optimization variables. The effective-medium model and transfer-matrix method were used to calculate the sound absorption coefficient, and optimized sound absorption coefficient was maximized at 0.938. The specific </span>acoustic impedance of the material is almost perfectly matched with air thanks to the optimized size of the lateral plates, micro-perforated plates, and cavities. Experimental results confirm the theoretical calculation, showing the investigated passive acoustic design method of designing sound absorber.</span></p></div>\",\"PeriodicalId\":55506,\"journal\":{\"name\":\"Applied Acoustics\",\"volume\":\"183 \",\"pages\":\"Article 108288\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2021-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.apacoust.2021.108288\",\"citationCount\":\"11\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Acoustics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0003682X21003820\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ACOUSTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Acoustics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0003682X21003820","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}

引用次数: 11

摘要

以几何参数为优化变量，采用基于教-学的优化算法使复合吸声器在0 ~ 1.6 kHz范围内的平均吸声系数最大化。采用有效介质模型和传递矩阵法计算吸声系数，优化后吸声系数最大，为0.938。由于优化了侧板、微孔板和空腔的尺寸，该材料的特定声阻抗几乎与空气完美匹配。实验结果证实了理论计算结果，表明所研究的被动声学设计方法是一种吸声设计方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Optimization design and experimental verification of composite absorber with broadband and high efficiency sound absorption

The average sound absorption coefficient of a composite absorber from 0 to 1.6 kHz was maximized using a teaching–learning-based optimization algorithm, where the geometric parameters were used as optimization variables. The effective-medium model and transfer-matrix method were used to calculate the sound absorption coefficient, and optimized sound absorption coefficient was maximized at 0.938. The specific acoustic impedance of the material is almost perfectly matched with air thanks to the optimized size of the lateral plates, micro-perforated plates, and cavities. Experimental results confirm the theoretical calculation, showing the investigated passive acoustic design method of designing sound absorber.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.